diff --git a/docs/config-app.md b/docs/config-app.md
index 36a0026515f..dec2ce563b7 100644
--- a/docs/config-app.md
+++ b/docs/config-app.md
@@ -154,7 +154,6 @@ There are several typical keys:
 - `adapters.<BIDDER_NAME>.usersync.redirect-url` - the redirect part of url for synchronizing UIDs cookie.
 - `adapters.<BIDDER_NAME>.usersync.cookie-family-name` - the family name by which user ids within adapter's realm are stored in uidsCookie.
 - `adapters.<BIDDER_NAME>.usersync.type` - usersync type (i.e. redirect, iframe).
-- `adapters.<BIDDER_NAME>.usersync.support-cors` - flag signals if CORS supported by usersync.
 - `adapters.<BIDDER_NAME>.debug.allow` - enables debug output in the auction response for the given bidder. Default `true`.
 - `adapters.<BIDDER_NAME>.tmax-deduction-ms` - adjusts the tmax sent to the bidder by deducting the provided value (ms). Default `0 ms` - no deduction.
 
diff --git a/src/main/java/org/prebid/server/bidder/UsersyncInfoFactory.java b/src/main/java/org/prebid/server/bidder/UsersyncInfoFactory.java
index 360b2d4a3a7..cccc0082991 100644
--- a/src/main/java/org/prebid/server/bidder/UsersyncInfoFactory.java
+++ b/src/main/java/org/prebid/server/bidder/UsersyncInfoFactory.java
@@ -48,8 +48,7 @@ public UsersyncInfo build(String bidder,
                 hostCookieUid == null
                         ? buildSyncUrl(bidder, usersyncMethod, privacy)
                         : buildSetUidUrl(bidder, HttpUtil.encodeUrl(hostCookieUid), usersyncMethod, privacy),
-                usersyncMethod.getType(),
-                usersyncMethod.isSupportCORS());
+                usersyncMethod.getType());
     }
 
     private String buildSyncUrl(String bidder, UsersyncMethod usersyncMethod, Privacy privacy) {
diff --git a/src/main/java/org/prebid/server/bidder/UsersyncMethod.java b/src/main/java/org/prebid/server/bidder/UsersyncMethod.java
index c835b93ccc9..7e20ef3a281 100644
--- a/src/main/java/org/prebid/server/bidder/UsersyncMethod.java
+++ b/src/main/java/org/prebid/server/bidder/UsersyncMethod.java
@@ -14,7 +14,5 @@ public class UsersyncMethod {
 
     String uidMacro;
 
-    boolean supportCORS;
-
     UsersyncFormat formatOverride;
 }
diff --git a/src/main/java/org/prebid/server/proto/response/UsersyncInfo.java b/src/main/java/org/prebid/server/proto/response/UsersyncInfo.java
index 67f4aa78868..76a912b0bcf 100644
--- a/src/main/java/org/prebid/server/proto/response/UsersyncInfo.java
+++ b/src/main/java/org/prebid/server/proto/response/UsersyncInfo.java
@@ -1,6 +1,5 @@
 package org.prebid.server.proto.response;
 
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.Value;
 import org.prebid.server.bidder.UsersyncMethodType;
 
@@ -15,7 +14,4 @@ public class UsersyncInfo {
     String url;
 
     UsersyncMethodType type;
-
-    @JsonProperty("supportCORS")
-    Boolean supportCORS;
 }
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/model/usersync/UsersyncMethodConfigurationProperties.java b/src/main/java/org/prebid/server/spring/config/bidder/model/usersync/UsersyncMethodConfigurationProperties.java
index fc9b685b339..2c05299c178 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/model/usersync/UsersyncMethodConfigurationProperties.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/model/usersync/UsersyncMethodConfigurationProperties.java
@@ -6,7 +6,6 @@
 import org.springframework.validation.annotation.Validated;
 
 import jakarta.validation.constraints.NotBlank;
-import jakarta.validation.constraints.NotNull;
 
 @Data
 @Validated
@@ -18,8 +17,5 @@ public class UsersyncMethodConfigurationProperties {
 
     String uidMacro;
 
-    @NotNull
-    Boolean supportCors;
-
     UsersyncFormat formatOverride;
 }
diff --git a/src/main/java/org/prebid/server/spring/config/bidder/util/UsersyncerUtil.java b/src/main/java/org/prebid/server/spring/config/bidder/util/UsersyncerUtil.java
index 2a669b58cdb..1f18daaae09 100644
--- a/src/main/java/org/prebid/server/spring/config/bidder/util/UsersyncerUtil.java
+++ b/src/main/java/org/prebid/server/spring/config/bidder/util/UsersyncerUtil.java
@@ -38,7 +38,6 @@ private static UsersyncMethod toMethod(UsersyncMethodType type,
                 .type(type)
                 .usersyncUrl(Uri.of(properties.getUrl()))
                 .uidMacro(properties.getUidMacro())
-                .supportCORS(properties.getSupportCors())
                 .formatOverride(properties.getFormatOverride())
                 .build();
     }
diff --git a/src/main/resources/bidder-config/aax.yaml b/src/main/resources/bidder-config/aax.yaml
index 3b648cd62dc..9e53c6b739d 100644
--- a/src/main/resources/bidder-config/aax.yaml
+++ b/src/main/resources/bidder-config/aax.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: aax
       redirect:
         url: https://c.aaxads.com/aacxc.php?fv=1&wbsh=psa&ryvlg=setstatuscode&redirect={redirect_url}
-        support-cors: false
         uid-macro: '<vsid>'
diff --git a/src/main/resources/bidder-config/acuityads.yaml b/src/main/resources/bidder-config/acuityads.yaml
index e8c06c0885e..c9cfb9f037a 100644
--- a/src/main/resources/bidder-config/acuityads.yaml
+++ b/src/main/resources/bidder-config/acuityads.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: acuityads
       redirect:
         url: https://cs.admanmedia.com/sync/prebid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/adagio.yaml b/src/main/resources/bidder-config/adagio.yaml
index 33870fbd9de..9848b3135f2 100644
--- a/src/main/resources/bidder-config/adagio.yaml
+++ b/src/main/resources/bidder-config/adagio.yaml
@@ -24,5 +24,4 @@ adapters:
       cookie-family-name: adagio
       iframe:
         url: https://u-REGION.4dex.io/pbserver/usync.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&&gpp_sid={gpp_sid}&r={redirect_url}
-        support-cors: false
         uid-macro: '{UID}'
diff --git a/src/main/resources/bidder-config/adf.yaml b/src/main/resources/bidder-config/adf.yaml
index f063341e4f0..7aa57c8ecae 100644
--- a/src/main/resources/bidder-config/adf.yaml
+++ b/src/main/resources/bidder-config/adf.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: adf
       redirect:
         url: https://c1.adform.net/cookie?redirect_url={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/adkernel.yaml b/src/main/resources/bidder-config/adkernel.yaml
index 264f1f3d1db..1f594cf7275 100644
--- a/src/main/resources/bidder-config/adkernel.yaml
+++ b/src/main/resources/bidder-config/adkernel.yaml
@@ -14,11 +14,9 @@ adapters:
           cookie-family-name: xapads
           redirect:
             url: https://sync.adkernel.com/user-sync?t=image&zone=284803&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-            support-cors: false
             uid-macro: '{UID}'
           iframe:
             url: https://sync.adkernel.com/user-sync?t=iframe&zone=284803&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-            support-cors: false
             uid-macro: '{UID}'
     meta-info:
       maintainer-email: prebid-dev@adkernel.com
@@ -38,5 +36,4 @@ adapters:
       cookie-family-name: adkernel
       redirect:
         url: https://sync.adkernel.com/user-sync?t=image&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-        support-cors: false
         uid-macro: '{UID}'
diff --git a/src/main/resources/bidder-config/adkerneladn.yaml b/src/main/resources/bidder-config/adkerneladn.yaml
index 46441555693..13161d5b321 100644
--- a/src/main/resources/bidder-config/adkerneladn.yaml
+++ b/src/main/resources/bidder-config/adkerneladn.yaml
@@ -14,5 +14,4 @@ adapters:
       cookie-family-name: adkernelAdn
       redirect:
         url: https://tag.adkernel.com/syncr?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&r={redirect_url}
-        support-cors: false
         uid-macro: '${UID}'
diff --git a/src/main/resources/bidder-config/adman.yaml b/src/main/resources/bidder-config/adman.yaml
index c9e4b454ba8..3266ac736b0 100644
--- a/src/main/resources/bidder-config/adman.yaml
+++ b/src/main/resources/bidder-config/adman.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: adman
       redirect:
         url: https://sync.admanmedia.com/pbs.gif?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/admixer.yaml b/src/main/resources/bidder-config/admixer.yaml
index fd50d5df401..9947521e567 100644
--- a/src/main/resources/bidder-config/admixer.yaml
+++ b/src/main/resources/bidder-config/admixer.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: admixer
       redirect:
         url: https://inv-nets.admixer.net/adxcm.aspx?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir=1&rurl={redirect_url}
-        support-cors: false
         uid-macro: '$$visitor_cookie$$'
diff --git a/src/main/resources/bidder-config/adot.yaml b/src/main/resources/bidder-config/adot.yaml
index ecd12c821b7..a0beb762e37 100644
--- a/src/main/resources/bidder-config/adot.yaml
+++ b/src/main/resources/bidder-config/adot.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: adot
       redirect:
         url: https://sync.adotmob.com/cookie/pbs?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&r={redirect_url}
-        support-cors: false
         uid-macro: '{amob_user_id}'
diff --git a/src/main/resources/bidder-config/adpone.yaml b/src/main/resources/bidder-config/adpone.yaml
index 69826d62be9..36681e02ec1 100644
--- a/src/main/resources/bidder-config/adpone.yaml
+++ b/src/main/resources/bidder-config/adpone.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: adpone
       redirect:
         url: https://usersync.adpone.com/csync?redir={redirect_url}
-        support-cors: false
         uid-macro: '{uid}'
diff --git a/src/main/resources/bidder-config/adprime.yaml b/src/main/resources/bidder-config/adprime.yaml
index f706037fe76..0e08e4214b7 100644
--- a/src/main/resources/bidder-config/adprime.yaml
+++ b/src/main/resources/bidder-config/adprime.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: adprime
       iframe:
         url: https://sync.adprime.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
       redirect:
         url: https://sync.adprime.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/adquery.yaml b/src/main/resources/bidder-config/adquery.yaml
index b9c70ecf0c9..84efd3bfc7b 100644
--- a/src/main/resources/bidder-config/adquery.yaml
+++ b/src/main/resources/bidder-config/adquery.yaml
@@ -12,5 +12,4 @@ adapters:
       cookie-family-name: adquery
       iframe:
         url: https://api.adquery.io/storage?gdpr={gdpr}&consent={gdpr_consent}&ccpa_consent={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/adtonos.yaml b/src/main/resources/bidder-config/adtonos.yaml
index 0810edec009..582046939c7 100644
--- a/src/main/resources/bidder-config/adtonos.yaml
+++ b/src/main/resources/bidder-config/adtonos.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: adtonos
       redirect:
         url: https://play.adtonos.com/redir?to={redirect_url}
-        support-cors: false
         uid-macro: '@UUID@'
diff --git a/src/main/resources/bidder-config/aduptech.yaml b/src/main/resources/bidder-config/aduptech.yaml
index e60c9f69804..52cb518140d 100644
--- a/src/main/resources/bidder-config/aduptech.yaml
+++ b/src/main/resources/bidder-config/aduptech.yaml
@@ -16,10 +16,8 @@ adapters:
       cookie-family-name: aduptech
       iframe:
         url: https://rtb.d.adup-tech.com/service/sync?iframe=1&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
       redirect:
         url: https://rtb.d.adup-tech.com/service/sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
     target-currency: "EUR"
diff --git a/src/main/resources/bidder-config/advangelists.yaml b/src/main/resources/bidder-config/advangelists.yaml
index 5c6c7113782..9b146bca755 100644
--- a/src/main/resources/bidder-config/advangelists.yaml
+++ b/src/main/resources/bidder-config/advangelists.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: advangelists
       iframe:
         url: https://nep.advangelists.com/xp/user-sync?acctid=%7Baid%7D&&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/adverxo.yaml b/src/main/resources/bidder-config/adverxo.yaml
index c29792ca49f..469aec0ce59 100644
--- a/src/main/resources/bidder-config/adverxo.yaml
+++ b/src/main/resources/bidder-config/adverxo.yaml
@@ -12,11 +12,9 @@ adapters:
           iframe:
             url: https://cittamatra.com/usync?type=iframe&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
             uid-macro: '$UID'
-            support-cors: false
           redirect:
             url: https://cittamatra.com/usync?type=image&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
             uid-macro: '$UID'
-            support-cors: false
       bidsmind:
         enabled: false
         endpoint: https://bidsmind.pbsadverxo.com/auction?id={adUnitId}&auth={auth}
@@ -26,11 +24,9 @@ adapters:
           iframe:
             url: https://taetee.com/usync?type=iframe&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
             uid-macro: '$UID'
-            support-cors: false
           redirect:
             url: https://taetee.com/usync?type=image&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
             uid-macro: '$UID'
-            support-cors: false
       harrenmedia:
         enabled: false
         endpoint: https://harrenmedia.pbsadverxo.com/auction?id={adUnitId}&auth={auth}
@@ -40,11 +36,9 @@ adapters:
           iframe:
             url: https://hmidssp.com/usync?type=iframe&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
             uid-macro: '$UID'
-            support-cors: false
           redirect:
             url:  https://hmidssp.com/usync?type=image&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
             uid-macro: '$UID'
-            support-cors: false
     meta-info:
       maintainer-email: developer@adverxo.com
       app-media-types:
@@ -61,10 +55,8 @@ adapters:
       cookie-family-name: adverxo
       iframe:
         url: https://pbsadverxo.com/usync?type=iframe&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://pbsadverxo.com/usync?type=image&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
 
diff --git a/src/main/resources/bidder-config/adyoulike.yaml b/src/main/resources/bidder-config/adyoulike.yaml
index cf695cd71e3..40db9504891 100644
--- a/src/main/resources/bidder-config/adyoulike.yaml
+++ b/src/main/resources/bidder-config/adyoulike.yaml
@@ -14,9 +14,7 @@ adapters:
       cookie-family-name: adyoulike
       iframe:
         url: https://visitor.omnitagjs.com/visitor/isync?uid=19340f4f097d16f41f34fc0274981ca4&name=PrebidServer&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&url={redirect_url}
-        support-cors: false
         uid-macro: '[BUYER_USERID]'
       redirect:
         url: https://visitor.omnitagjs.com/visitor/bsync?uid=19340f4f097d16f41f34fc0274981ca4&name=PrebidServer&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&url={redirect_url}
-        support-cors: false
         uid-macro: '[BUYER_USERID]'
diff --git a/src/main/resources/bidder-config/aidem.yaml b/src/main/resources/bidder-config/aidem.yaml
index 00cde37b560..cd177677b2a 100644
--- a/src/main/resources/bidder-config/aidem.yaml
+++ b/src/main/resources/bidder-config/aidem.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: aidem
       redirect:
         url: https://gum.aidemsrv.com/prebid_sync?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/aja.yaml b/src/main/resources/bidder-config/aja.yaml
index bbba7c9428a..3af5ce23645 100644
--- a/src/main/resources/bidder-config/aja.yaml
+++ b/src/main/resources/bidder-config/aja.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: aja
       redirect:
         url: https://ad.as.amanad.adtdp.com/v1/sync/ssp?ssp=4&gdpr={gdpr}&us_privacy={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '%s'
diff --git a/src/main/resources/bidder-config/alkimi.yaml b/src/main/resources/bidder-config/alkimi.yaml
index ff744550762..106db4e6f5e 100644
--- a/src/main/resources/bidder-config/alkimi.yaml
+++ b/src/main/resources/bidder-config/alkimi.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: alkimi
       redirect:
         url: https://user-sync.alkimi-onboarding.com/ssp-sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '${UID}'
diff --git a/src/main/resources/bidder-config/alliancegravity.yaml b/src/main/resources/bidder-config/alliancegravity.yaml
index 60be1468baa..2284e3ea813 100644
--- a/src/main/resources/bidder-config/alliancegravity.yaml
+++ b/src/main/resources/bidder-config/alliancegravity.yaml
@@ -21,5 +21,4 @@ adapters:
       cookie-family-name: alliancegravity
       iframe:
         url: https://pbs.production.agrvt.com/static/cookie_sync.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/amx.yaml b/src/main/resources/bidder-config/amx.yaml
index f9f3e7a1920..0c357e32ba7 100644
--- a/src/main/resources/bidder-config/amx.yaml
+++ b/src/main/resources/bidder-config/amx.yaml
@@ -18,9 +18,7 @@ adapters:
       cookie-family-name: amx
       redirect:
         url: https://prebid.a-mo.net/cchain/0?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&cb={redirect_url}
-        support-cors: false
         uid-macro: "$UID"
       iframe:
         url: https://prebid.a-mo.net/isyn?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&s=pbs&cb={redirect_url}
         uid-macro: "$UID"
-        support-cors: false
diff --git a/src/main/resources/bidder-config/apacdex.yaml b/src/main/resources/bidder-config/apacdex.yaml
index 10413148204..1fb97e98e34 100644
--- a/src/main/resources/bidder-config/apacdex.yaml
+++ b/src/main/resources/bidder-config/apacdex.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: apacdex
       iframe:
         url: https://sync.quantumdex.io/usersync/pbs?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&r={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
       redirect:
         url: https://sync.quantumdex.io/getuid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&r={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/appnexus.yaml b/src/main/resources/bidder-config/appnexus.yaml
index 84bbd0950e5..68ea6ec9658 100644
--- a/src/main/resources/bidder-config/appnexus.yaml
+++ b/src/main/resources/bidder-config/appnexus.yaml
@@ -21,7 +21,6 @@ adapters:
       cookie-family-name: adnxs
       redirect:
         url: https://ib.adnxs.com/getuid?{redirect_url}
-        support-cors: false
         uid-macro: '$UID'
     platform-id: 5
     iab-categories:
diff --git a/src/main/resources/bidder-config/aso.yaml b/src/main/resources/bidder-config/aso.yaml
index 936d8bded8a..14ba5ff60e9 100644
--- a/src/main/resources/bidder-config/aso.yaml
+++ b/src/main/resources/bidder-config/aso.yaml
@@ -11,7 +11,6 @@ adapters:
           cookie-family-name: bcmint
           redirect:
             url: https://track.datacygnal.io/sync/v2?gdpr={gdpr}&gdpr_consent={gdpr_consent}&usp={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-            support-cors: false
             uid-macro: '{uid}'
       bidagency:
         enabled: false
@@ -22,7 +21,6 @@ adapters:
           cookie-family-name: bidagency
           redirect:
             url: https://track.bidgx.com/sync/v2?gdpr={gdpr}&gdpr_consent={gdpr_consent}&usp={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-            support-cors: false
             uid-macro: '{uid}'
       kuantyx:
         enabled: false
@@ -33,7 +31,6 @@ adapters:
           cookie-family-name: kuantyx
           redirect:
             url: https://track.kntxy.com/sync/v2?gdpr={gdpr}&gdpr_consent={gdpr_consent}&usp={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-            support-cors: false
             uid-macro: '{uid}'
     meta-info:
       maintainer-email: support@adsrv.org
@@ -50,5 +47,4 @@ adapters:
       cookie-family-name: aso
       redirect:
         url: https://track.aso1.net/sync/v2?gdpr={gdpr}&gdpr_consent={gdpr_consent}&usp={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '{uid}'
diff --git a/src/main/resources/bidder-config/avocet.yaml b/src/main/resources/bidder-config/avocet.yaml
index 77add0f7eea..77c8e86a457 100644
--- a/src/main/resources/bidder-config/avocet.yaml
+++ b/src/main/resources/bidder-config/avocet.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: avocet
       redirect:
         url: https://ads.avct.cloud/getuid?&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&url={redirect_url}
-        support-cors: false
         uid-macro: '{{UUID}}'
diff --git a/src/main/resources/bidder-config/axis.yaml b/src/main/resources/bidder-config/axis.yaml
index bf6e1ff8246..f9cbabdabab 100644
--- a/src/main/resources/bidder-config/axis.yaml
+++ b/src/main/resources/bidder-config/axis.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: axis
       redirect:
         url: https://cs.axis-marketplace.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/axonix.yaml b/src/main/resources/bidder-config/axonix.yaml
index fcb668ccb26..2dff4857e6e 100644
--- a/src/main/resources/bidder-config/axonix.yaml
+++ b/src/main/resources/bidder-config/axonix.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: axonix
       redirect:
-        support-cors: false
         url: https://openrtb-us-east-1.axonix.com/syn?redirect={redirect_url}
         uid-macro: 'xxEMODO_IDxx'
diff --git a/src/main/resources/bidder-config/beachfront.yaml b/src/main/resources/bidder-config/beachfront.yaml
index 8706f356af3..add3fdadb5f 100644
--- a/src/main/resources/bidder-config/beachfront.yaml
+++ b/src/main/resources/bidder-config/beachfront.yaml
@@ -15,6 +15,5 @@ adapters:
       cookie-family-name: beachfront
       iframe:
         url: https://sync.bfmio.com/sync_s2s?gdpr={gdpr}&url={redirect_url}
-        support-cors: false
         uid-macro: '[io_cid]'
     video-endpoint: https://reachms.bfmio.com/bid.json
diff --git a/src/main/resources/bidder-config/beintoo.yaml b/src/main/resources/bidder-config/beintoo.yaml
index 0db048989f7..cd4bf9454bf 100644
--- a/src/main/resources/bidder-config/beintoo.yaml
+++ b/src/main/resources/bidder-config/beintoo.yaml
@@ -12,5 +12,4 @@ adapters:
       cookie-family-name: beintoo
       iframe:
         url: https://ib.beintoo.com/um?ssp=pbs&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/between.yaml b/src/main/resources/bidder-config/between.yaml
index 68e9bf0800f..5047e56f9f7 100644
--- a/src/main/resources/bidder-config/between.yaml
+++ b/src/main/resources/bidder-config/between.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: between
       redirect:
         url: https://ads.betweendigital.com/match?bidder_id=pbs&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&callback_url={redirect_url}
-        support-cors: false
         uid-macro: '${USER_ID}'
diff --git a/src/main/resources/bidder-config/bidmyadz.yaml b/src/main/resources/bidder-config/bidmyadz.yaml
index d2d5c9f89ce..5db04d85764 100644
--- a/src/main/resources/bidder-config/bidmyadz.yaml
+++ b/src/main/resources/bidder-config/bidmyadz.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: bidmyadz
       redirect:
         url: https://cookie-sync.bidmyadz.com/c0f68227d14ed938c6c49f3967cbe9bc?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&red={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/bidtheatre.yaml b/src/main/resources/bidder-config/bidtheatre.yaml
index 58439303e69..da50135f5ea 100644
--- a/src/main/resources/bidder-config/bidtheatre.yaml
+++ b/src/main/resources/bidder-config/bidtheatre.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: bidtheatre
       redirect:
         url: https://match.adsby.bidtheatre.com/prebidmatch?gdpr={gdpr}&gdpr_consent={gdpr_consent}&redir={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/bliink.yaml b/src/main/resources/bidder-config/bliink.yaml
index b3a16b397d2..a4a096dcc62 100644
--- a/src/main/resources/bidder-config/bliink.yaml
+++ b/src/main/resources/bidder-config/bliink.yaml
@@ -18,9 +18,7 @@ adapters:
       cookie-family-name: bliink
       redirect:
         url: https://cookiesync.api.bliink.io/getuid?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&url={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://tag.bliink.io/usersync.html?gdpr={gdpr}&gdprConsent={gdpr_consent}&uspConsent={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/blis.yaml b/src/main/resources/bidder-config/blis.yaml
index f0367800c64..94ab9e2774c 100644
--- a/src/main/resources/bidder-config/blis.yaml
+++ b/src/main/resources/bidder-config/blis.yaml
@@ -20,5 +20,4 @@ adapters:
       cookie-family-name: blis
       redirect:
         url: https://tr.blismedia.com/v1/api/sync/prebid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&r={redirect_url}
-        support-cors: false
         uid-macro: '%%BLIS_USER_TOKEN%%'
diff --git a/src/main/resources/bidder-config/boldwin.yaml b/src/main/resources/bidder-config/boldwin.yaml
index d4f3e1a6b2f..05b080c7ee3 100644
--- a/src/main/resources/bidder-config/boldwin.yaml
+++ b/src/main/resources/bidder-config/boldwin.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: boldwin
       redirect:
-        support-cors: false
         url: https://sync.videowalldirect.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&redir={redirect_url}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/colossus.yaml b/src/main/resources/bidder-config/colossus.yaml
index 6b5b05f6425..b03b7dcb72a 100644
--- a/src/main/resources/bidder-config/colossus.yaml
+++ b/src/main/resources/bidder-config/colossus.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: colossus
       redirect:
         url: https://sync.colossusssp.com/pbs.gif?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/compass.yaml b/src/main/resources/bidder-config/compass.yaml
index 33e6165532b..85eae2c9a44 100644
--- a/src/main/resources/bidder-config/compass.yaml
+++ b/src/main/resources/bidder-config/compass.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: compass
       redirect:
         url: https://sa-cs.deliverimp.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
-        support-cors: false
         url: https://sa-cs.deliverimp.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/connatix.yaml b/src/main/resources/bidder-config/connatix.yaml
index 10f55e844b9..2e6fd6c3077 100644
--- a/src/main/resources/bidder-config/connatix.yaml
+++ b/src/main/resources/bidder-config/connatix.yaml
@@ -16,9 +16,7 @@ adapters:
       iframe:
         url: "https://capi.connatix.com/us/pixel?pId=53&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&callback={redirect_url}"
         uid-macro: '[UID]'
-        support-cors: false
       redirect:
         url: "https://capi.connatix.com/us/pixel?pId=52&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&callback={redirect_url}"
         uid-macro: '[UID]'
-        support-cors: false
 
diff --git a/src/main/resources/bidder-config/connectad.yaml b/src/main/resources/bidder-config/connectad.yaml
index 779d1cb5b55..d6f9db7301a 100644
--- a/src/main/resources/bidder-config/connectad.yaml
+++ b/src/main/resources/bidder-config/connectad.yaml
@@ -20,7 +20,5 @@ adapters:
       cookie-family-name: connectad
       redirect:
         url: https://sync.connectad.io/ImageSyncer?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&cb={redirect_url}
-        support-cors: false
       iframe:
         url: https://sync.connectad.io/iFrameSyncer?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&cb={redirect_url}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/consumable.yaml b/src/main/resources/bidder-config/consumable.yaml
index 3697d2db89c..bf0b557fe72 100644
--- a/src/main/resources/bidder-config/consumable.yaml
+++ b/src/main/resources/bidder-config/consumable.yaml
@@ -20,4 +20,3 @@ adapters:
       cookie-family-name: consumable
       redirect:
         url: https://e.serverbid.com/udb/9969/match?gdpr={gdpr}&euconsent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/contxtful.yaml b/src/main/resources/bidder-config/contxtful.yaml
index 5255f098431..58a8abb3d41 100644
--- a/src/main/resources/bidder-config/contxtful.yaml
+++ b/src/main/resources/bidder-config/contxtful.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: contxtful
       iframe:
         url: https://sync.receptivity.io/pbs/iframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/copper6ssp.yaml b/src/main/resources/bidder-config/copper6ssp.yaml
index 489a4e427aa..e87488eabce 100644
--- a/src/main/resources/bidder-config/copper6ssp.yaml
+++ b/src/main/resources/bidder-config/copper6ssp.yaml
@@ -16,10 +16,8 @@ adapters:
     usersync:
       cookie-family-name: copper6ssp
       redirect:
-        support-cors: false
         url: https://csync.copper6.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
         uid-macro: '[UID]'
       iframe:
-        support-cors: false
         url: https://csync.copper6.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/cpmstar.yaml b/src/main/resources/bidder-config/cpmstar.yaml
index 54b25a2dd95..f5fc117ed3d 100644
--- a/src/main/resources/bidder-config/cpmstar.yaml
+++ b/src/main/resources/bidder-config/cpmstar.yaml
@@ -15,9 +15,7 @@ adapters:
       cookie-family-name: cpmstar
       iframe:
         url: https://server.cpmstar.com/usersync.aspx?ifr=1&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://server.cpmstar.com/usersync.aspx?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/criteo.yaml b/src/main/resources/bidder-config/criteo.yaml
index a33a29e9fb0..e516e713679 100644
--- a/src/main/resources/bidder-config/criteo.yaml
+++ b/src/main/resources/bidder-config/criteo.yaml
@@ -23,9 +23,7 @@ adapters:
       cookie-family-name: criteo
       redirect:
         url: https://ssp-sync.criteo.com/user-sync/redirect?gdprapplies={gdpr}&gdpr={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}&profile=230
-        support-cors: false
         uid-macro: '${CRITEO_USER_ID}'
       iframe:
         url: https://ssp-sync.criteo.com/user-sync/iframe?gdprapplies={gdpr}&gdpr={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}&profile=230
-        support-cors: false
         uid-macro: '${CRITEO_USER_ID}'
diff --git a/src/main/resources/bidder-config/datablocks.yaml b/src/main/resources/bidder-config/datablocks.yaml
index 12e9efe2dd1..7441345b460 100644
--- a/src/main/resources/bidder-config/datablocks.yaml
+++ b/src/main/resources/bidder-config/datablocks.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: datablocks
       redirect:
         url: https://sync.v5prebid.datablocks.net/s2ssync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&r={redirect_url}
-        support-cors: false
         uid-macro: '${uid}'
diff --git a/src/main/resources/bidder-config/deepintent.yaml b/src/main/resources/bidder-config/deepintent.yaml
index 26a04450f3f..4a27b86695d 100644
--- a/src/main/resources/bidder-config/deepintent.yaml
+++ b/src/main/resources/bidder-config/deepintent.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: deepintent
       iframe:
         url: https://match.deepintent.com/usersync/136?id=unk&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '${DI_USER_ID}'
diff --git a/src/main/resources/bidder-config/dianomi.yaml b/src/main/resources/bidder-config/dianomi.yaml
index 94a9537a177..b0c6eb25976 100644
--- a/src/main/resources/bidder-config/dianomi.yaml
+++ b/src/main/resources/bidder-config/dianomi.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: dianomi
       iframe:
         url: https://www-prebid.dianomi.com/prebid/usersync/index.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://data.dianomi.com/frontend/usync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/driftpixel.yaml b/src/main/resources/bidder-config/driftpixel.yaml
index d2d76afc092..583b58d31fe 100644
--- a/src/main/resources/bidder-config/driftpixel.yaml
+++ b/src/main/resources/bidder-config/driftpixel.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: driftpixel
       redirect:
         url: "https://sync.driftpixel.live/psync?t=s&e=0&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&cb={redirect_url}"
-        support-cors: false
         uid-macro: "%USER_ID%"
diff --git a/src/main/resources/bidder-config/emtv.yaml b/src/main/resources/bidder-config/emtv.yaml
index a6e7b064aa5..c17f93c2108 100644
--- a/src/main/resources/bidder-config/emtv.yaml
+++ b/src/main/resources/bidder-config/emtv.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: emtv
       redirect:
         url: https://cs.engagemedia.tv/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/emxdigital.yaml b/src/main/resources/bidder-config/emxdigital.yaml
index 84d822aa328..f89c489dc51 100644
--- a/src/main/resources/bidder-config/emxdigital.yaml
+++ b/src/main/resources/bidder-config/emxdigital.yaml
@@ -22,5 +22,4 @@ adapters:
       cookie-family-name: emx_digital
       iframe:
         url: https://cs.emxdgt.com/um?ssp=pbs&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/eplanning.yaml b/src/main/resources/bidder-config/eplanning.yaml
index 03e9f6c17c1..baeb1b476ae 100644
--- a/src/main/resources/bidder-config/eplanning.yaml
+++ b/src/main/resources/bidder-config/eplanning.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: eplanning
       iframe:
         url: https://ads.us.e-planning.net/uspd/1/?du={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/epsilon.yaml b/src/main/resources/bidder-config/epsilon.yaml
index 9b0162d7b92..b93929ad431 100644
--- a/src/main/resources/bidder-config/epsilon.yaml
+++ b/src/main/resources/bidder-config/epsilon.yaml
@@ -24,5 +24,4 @@ adapters:
       cookie-family-name: epsilon
       redirect:
         url: https://prebid-match.dotomi.com/match/bounce/current?version=1&networkId=72582&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&rurl={redirect_url}
-        support-cors: false
     generate-bid-id: true
diff --git a/src/main/resources/bidder-config/evolution.yaml b/src/main/resources/bidder-config/evolution.yaml
index 72216850b38..93971cdbdd6 100644
--- a/src/main/resources/bidder-config/evolution.yaml
+++ b/src/main/resources/bidder-config/evolution.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: e_volution
       redirect:
         url: https://sync.e-volution.ai/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
         url: https://sync.e-volution.ai/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/exco.yaml b/src/main/resources/bidder-config/exco.yaml
index 0c329cf9148..f180f12aa95 100644
--- a/src/main/resources/bidder-config/exco.yaml
+++ b/src/main/resources/bidder-config/exco.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: exco
       redirect:
         url: https://sync.ex.co/v1/user_sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/feedad.yaml b/src/main/resources/bidder-config/feedad.yaml
index 5d3a0574a49..c9db7094825 100644
--- a/src/main/resources/bidder-config/feedad.yaml
+++ b/src/main/resources/bidder-config/feedad.yaml
@@ -14,5 +14,4 @@ adapters:
       cookie-family-name: feedad
       iframe:
         url: https://ortb.feedad.com/1/usersyncs/supply?gdpr={gdpr}&gdpr_consent={gdpr_consent}&gpp={gpp}&gpp_sid={gpp_sid}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: $UID
diff --git a/src/main/resources/bidder-config/freewheelssp.yaml b/src/main/resources/bidder-config/freewheelssp.yaml
index fb7e491855d..cb0cb6d04cb 100644
--- a/src/main/resources/bidder-config/freewheelssp.yaml
+++ b/src/main/resources/bidder-config/freewheelssp.yaml
@@ -13,7 +13,6 @@ adapters:
           cookie-family-name: fwssp
           iframe:
             url: https://user-sync.fwmrm.net/ad/u?mode=pbs-user-sync&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&pbs_redirect={redirect_url}
-            support-cors: false
             uid-macro: '#{user.id}'
     meta-info:
       maintainer-email: prebid-maintainer@freewheel.com
@@ -27,5 +26,4 @@ adapters:
       cookie-family-name: freewheelssp
       iframe:
         url: https://ads.stickyadstv.com/pbs-user-sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-        support-cors: false
         uid-macro: '{viewerid}'
diff --git a/src/main/resources/bidder-config/frvradn.yaml b/src/main/resources/bidder-config/frvradn.yaml
index 28b65bb6ec0..93141d9bcb4 100644
--- a/src/main/resources/bidder-config/frvradn.yaml
+++ b/src/main/resources/bidder-config/frvradn.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: frvradn
       iframe:
         url: https://fran.frvr.com/api/v1/sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect_uri={redirect_url}
-        support-cors: false
         uid-macro: '{{UID}}'
diff --git a/src/main/resources/bidder-config/gamoshi.yaml b/src/main/resources/bidder-config/gamoshi.yaml
index 77c2a5792b9..60d48484c9a 100644
--- a/src/main/resources/bidder-config/gamoshi.yaml
+++ b/src/main/resources/bidder-config/gamoshi.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: gamoshi
       redirect:
         url: https://rtb.gamoshi.io/user_sync_prebid?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&rurl={redirect_url}
-        support-cors: false
         uid-macro: '[gusr]'
diff --git a/src/main/resources/bidder-config/generic.yaml b/src/main/resources/bidder-config/generic.yaml
index ef6e5f3fe56..80f5af96d1c 100644
--- a/src/main/resources/bidder-config/generic.yaml
+++ b/src/main/resources/bidder-config/generic.yaml
@@ -28,7 +28,6 @@ adapters:
           cookie-family-name: ccx
           redirect:
             url: https://sync.clickonometrics.pl/prebid/set-cookie?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&cb={redirect_url}
-            support-cors: false
             uid-macro: '${USER_ID}'
       infytv:
         enabled: false
@@ -61,7 +60,6 @@ adapters:
           redirect:
             url: https://ssp.disqus.com/redirectuser?sid=GET_SID_FROM_ZETA&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&r={redirect_url}
             uid-macro: 'BUYERUID'
-            support-cors: false
       blue:
         enabled: false
         endpoint: https://prebid-us-east-1.getblue.io/?src=prebid
@@ -91,11 +89,9 @@ adapters:
           cookie-family-name: cwire
           redirect:
             url: https://prebid.cwi.re/v1/usersync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&rd={redirect_url}
-            support-cors: false
             uid-macro: '$UID'
           iframe:
             url:  https://prebid.cwi.re/v1/usersync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&rd={redirect_url}
-            support-cors: false
             uid-macro: '$UID'
     meta-info:
       maintainer-email: maintainer@example.com
diff --git a/src/main/resources/bidder-config/globalsun.yaml b/src/main/resources/bidder-config/globalsun.yaml
index f0d56ae941b..e7d046fe8e3 100644
--- a/src/main/resources/bidder-config/globalsun.yaml
+++ b/src/main/resources/bidder-config/globalsun.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: globalsun
       redirect:
         url: "https://cs.globalsun.io/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}"
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/grid.yaml b/src/main/resources/bidder-config/grid.yaml
index 0341d7b1253..b58b1679316 100644
--- a/src/main/resources/bidder-config/grid.yaml
+++ b/src/main/resources/bidder-config/grid.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: grid
       redirect:
         url: https://x.bidswitch.net/check_uuid/{redirect_url}?gdpr={gdpr}&gdpr_consent={gdpr_consent}&gpp={gpp}&gpp_sid={gpp_sid}&us_privacy={us_privacy}
-        support-cors: false
         uid-macro: '${BSW_UUID}'
diff --git a/src/main/resources/bidder-config/gumgum.yaml b/src/main/resources/bidder-config/gumgum.yaml
index fb6b39aa27f..980a9035697 100644
--- a/src/main/resources/bidder-config/gumgum.yaml
+++ b/src/main/resources/bidder-config/gumgum.yaml
@@ -14,4 +14,3 @@ adapters:
       cookie-family-name: gumgum
       iframe:
         url: https://rtb.gumgum.com/usync/prbds2s?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&r={redirect_url}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/imds.yaml b/src/main/resources/bidder-config/imds.yaml
index 351243b2c70..b617fb99d39 100644
--- a/src/main/resources/bidder-config/imds.yaml
+++ b/src/main/resources/bidder-config/imds.yaml
@@ -25,9 +25,7 @@ adapters:
       cookie-family-name: "imds"
       iframe:
         url: "https://ad-cdn.technoratimedia.com/html/usersync.html?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gppsid={gpp_sid}&cb={redirect_url}"
-        support-cors: true
         uid-macro: '[USER_ID]'
       redirect:
         url: "https://sync.technoratimedia.com/services?srv=cs&gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gppsid={gpp_sid}&cb={redirect_url}"
-        support-cors: true
         uid-macro: '[USER_ID]'
diff --git a/src/main/resources/bidder-config/impactify.yaml b/src/main/resources/bidder-config/impactify.yaml
index e97f1ad7e58..c6af2eb6a98 100644
--- a/src/main/resources/bidder-config/impactify.yaml
+++ b/src/main/resources/bidder-config/impactify.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: impactify
       iframe:
         url: https://sonic.impactify.media/static/cookie_sync.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect_url={redirect_url}
-        support-cors: false
         uid-macro: '{IMPACTIFY_UID}'
diff --git a/src/main/resources/bidder-config/improvedigital.yaml b/src/main/resources/bidder-config/improvedigital.yaml
index d530bfca2f2..b0a4ddf11ce 100644
--- a/src/main/resources/bidder-config/improvedigital.yaml
+++ b/src/main/resources/bidder-config/improvedigital.yaml
@@ -20,9 +20,7 @@ adapters:
       cookie-family-name: improvedigital
       iframe:
         url: https://ad.360yield.com/user_sync?rt=html&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-        support-cors: false
         uid-macro: '{PUB_USER_ID}'
       redirect:
         url: https://ad.360yield.com/server_match?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-        support-cors: false
         uid-macro: '{PUB_USER_ID}'
diff --git a/src/main/resources/bidder-config/inmobi.yaml b/src/main/resources/bidder-config/inmobi.yaml
index cab92c2ba9c..d0888e542f7 100644
--- a/src/main/resources/bidder-config/inmobi.yaml
+++ b/src/main/resources/bidder-config/inmobi.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: inmobi
       iframe:
         url: https://sync.inmobi.com/prebid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '{ID5UID}'
       redirect:
         url: https://sync.inmobi.com/prebid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '{ID5UID}'
diff --git a/src/main/resources/bidder-config/insticator.yaml b/src/main/resources/bidder-config/insticator.yaml
index 3d267e8adc8..a975381b51d 100644
--- a/src/main/resources/bidder-config/insticator.yaml
+++ b/src/main/resources/bidder-config/insticator.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: insticator
       iframe:
         url: https://usync.ingage.tech?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/iqzone.yaml b/src/main/resources/bidder-config/iqzone.yaml
index 8aa8f74d87e..03064dea5ee 100644
--- a/src/main/resources/bidder-config/iqzone.yaml
+++ b/src/main/resources/bidder-config/iqzone.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: iqzone
       redirect:
         url: https://cs.iqzone.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
         url: https://cs.iqzone.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/ix.yaml b/src/main/resources/bidder-config/ix.yaml
index d82a675a3f5..764c35b8026 100644
--- a/src/main/resources/bidder-config/ix.yaml
+++ b/src/main/resources/bidder-config/ix.yaml
@@ -21,7 +21,5 @@ adapters:
       cookie-family-name: ix
       redirect:
         url: https://ssum.casalemedia.com/usermatchredir?s=189517&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&cb={redirect_url}
-        support-cors: false
       iframe:
         url: https://ssum-sec.casalemedia.com/usermatch?s=184674&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&cb={redirect_url}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/jixie.yaml b/src/main/resources/bidder-config/jixie.yaml
index 088b68a005d..2cbd515ed2e 100644
--- a/src/main/resources/bidder-config/jixie.yaml
+++ b/src/main/resources/bidder-config/jixie.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: jixie
       redirect:
         url: https://id.jixie.io/api/sync?pid=&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '%%JXUID%%'
diff --git a/src/main/resources/bidder-config/kargo.yaml b/src/main/resources/bidder-config/kargo.yaml
index 6c06658018b..f46d616d58d 100644
--- a/src/main/resources/bidder-config/kargo.yaml
+++ b/src/main/resources/bidder-config/kargo.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: kargo
       redirect:
         url: https://crb.kargo.com/api/v1/dsync/PrebidServer?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/kiviads.yaml b/src/main/resources/bidder-config/kiviads.yaml
index 67c041a184b..ed9176087b9 100644
--- a/src/main/resources/bidder-config/kiviads.yaml
+++ b/src/main/resources/bidder-config/kiviads.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: kiviads
       iframe:
         url: https://sync.kiviads.com/pserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/krushmedia.yaml b/src/main/resources/bidder-config/krushmedia.yaml
index 156dc6d5d3d..3cc52a91284 100644
--- a/src/main/resources/bidder-config/krushmedia.yaml
+++ b/src/main/resources/bidder-config/krushmedia.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: krushmedia
       redirect:
         url: https://cs.krushmedia.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
         url: https://cs.krushmedia.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/kueezrtb.yaml b/src/main/resources/bidder-config/kueezrtb.yaml
index 16f0709cf26..adfd3eeca06 100644
--- a/src/main/resources/bidder-config/kueezrtb.yaml
+++ b/src/main/resources/bidder-config/kueezrtb.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: kueezrtb
       iframe:
         url: https://sync.kueezrtb.com/api/user/html/62ce79e7dd15099534ae5e04?pbs=true&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}&gpp={gpp}&gpp_sid={gpp_sid}
-        support-cors: false
         uid-macro: '${userId}'
diff --git a/src/main/resources/bidder-config/lemmadigital.yaml b/src/main/resources/bidder-config/lemmadigital.yaml
index a5b04b60455..d5000731362 100644
--- a/src/main/resources/bidder-config/lemmadigital.yaml
+++ b/src/main/resources/bidder-config/lemmadigital.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: lemmadigital
       redirect:
         url: https://sync.lemmadigital.com/setuid?publisher=850&redirect={redirect_url}
-        support-cors: false
         uid-macro: '${UUID}'
diff --git a/src/main/resources/bidder-config/limelightDigital.yaml b/src/main/resources/bidder-config/limelightDigital.yaml
index 249279d48a9..4ce130419ef 100644
--- a/src/main/resources/bidder-config/limelightDigital.yaml
+++ b/src/main/resources/bidder-config/limelightDigital.yaml
@@ -17,11 +17,9 @@ adapters:
           cookie-family-name: evtech
           iframe:
             url: https://tracker.direct.e-volution.ai/sync.html?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-            support-cors: false
             uid-macro: '{PLL_USER_ID}'
           redirect:
             url: https://tracker.direct.e-volution.ai/sync?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-            support-cors: false
             uid-macro: '{PLL_USER_ID}'
       adsyield:
         enabled: false
diff --git a/src/main/resources/bidder-config/lockerdome.yaml b/src/main/resources/bidder-config/lockerdome.yaml
index 9fe93791809..0c890fbba64 100644
--- a/src/main/resources/bidder-config/lockerdome.yaml
+++ b/src/main/resources/bidder-config/lockerdome.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: lockerdome
       redirect:
         url: https://lockerdome.com/usync/prebidserver?redirect={redirect_url}
-        support-cors: false
         uid-macro: '{{uid}}'
diff --git a/src/main/resources/bidder-config/logan.yaml b/src/main/resources/bidder-config/logan.yaml
index 0ae74d2e1ed..fca9bf1b30d 100644
--- a/src/main/resources/bidder-config/logan.yaml
+++ b/src/main/resources/bidder-config/logan.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: logan
       redirect:
         url: https://ssp-cookie.logan.ai/pserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/logicad.yaml b/src/main/resources/bidder-config/logicad.yaml
index c972de8b628..b15ef971509 100644
--- a/src/main/resources/bidder-config/logicad.yaml
+++ b/src/main/resources/bidder-config/logicad.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: logicad
       redirect:
         url: https://cr-p31.ladsp.jp/cookiesender/31?r=true&gdpr={gdpr}&gdpr_consent={gdpr_consent}&ru={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/loopme.yaml b/src/main/resources/bidder-config/loopme.yaml
index cf1b68c4389..6bbd35547bb 100644
--- a/src/main/resources/bidder-config/loopme.yaml
+++ b/src/main/resources/bidder-config/loopme.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: loopme
       redirect:
         url: https://csync.loopme.me/?pubid=11393&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '{udid}'
diff --git a/src/main/resources/bidder-config/lunamedia.yaml b/src/main/resources/bidder-config/lunamedia.yaml
index 71c05faf6a2..758c737cf78 100644
--- a/src/main/resources/bidder-config/lunamedia.yaml
+++ b/src/main/resources/bidder-config/lunamedia.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: lunamedia
       iframe:
         url: https://sync.lunamedia.live/psync?t=s&e=0&cb={redirect_url}
-        support-cors: false
         uid-macro: '%USER_ID%'
diff --git a/src/main/resources/bidder-config/marsmedia.yaml b/src/main/resources/bidder-config/marsmedia.yaml
index 2e1fc8206b7..fc2e2afa814 100644
--- a/src/main/resources/bidder-config/marsmedia.yaml
+++ b/src/main/resources/bidder-config/marsmedia.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: marsmedia
       redirect:
         url: https://dmp.rtbsrv.com/dmp/profiles/cm?p_id=179&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '${UUID}'
diff --git a/src/main/resources/bidder-config/mediago.yaml b/src/main/resources/bidder-config/mediago.yaml
index a4f3419003d..cb6d414e3d2 100644
--- a/src/main/resources/bidder-config/mediago.yaml
+++ b/src/main/resources/bidder-config/mediago.yaml
@@ -25,5 +25,4 @@ adapters:
       cookie-family-name: mediago
       redirect:
         url: https://trace.mediago.io/ju/cs/prebid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/medianet.yaml b/src/main/resources/bidder-config/medianet.yaml
index 921442b1c38..fb3110ea8be 100644
--- a/src/main/resources/bidder-config/medianet.yaml
+++ b/src/main/resources/bidder-config/medianet.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: medianet
       iframe:
         url: https://hbx.media.net/checksync.php?cid=8CUEHS6F9&cs=87&type=mpbc&cv=37&vsSync=1&uspstring={us_privacy}&gdpr={gdpr}&gdprstring={gdpr_consent}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '<vsid>'
       redirect:
         url: https://cs.media.net/cksync.php?cs=1&type=pbs&ovsid=setstatuscode&bidder=medianet&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '<vsid>'
diff --git a/src/main/resources/bidder-config/metax.yaml b/src/main/resources/bidder-config/metax.yaml
index 15c8ccce750..3de6f4d4f50 100644
--- a/src/main/resources/bidder-config/metax.yaml
+++ b/src/main/resources/bidder-config/metax.yaml
@@ -20,5 +20,4 @@ adapters:
       cookie-family-name: metax
       redirect:
         url: https://cm.metaxads.com/pixel?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/mgid.yaml b/src/main/resources/bidder-config/mgid.yaml
index 355eb0539e5..38f9c1d8786 100644
--- a/src/main/resources/bidder-config/mgid.yaml
+++ b/src/main/resources/bidder-config/mgid.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: mgid
       redirect:
         url: https://cm.mgid.com/m?cdsp=363893&adu={redirect_url}
-        support-cors: false
         uid-macro: '{muidn}'
diff --git a/src/main/resources/bidder-config/mgidx.yaml b/src/main/resources/bidder-config/mgidx.yaml
index 078ecaf93dd..61ee1fcf8e8 100644
--- a/src/main/resources/bidder-config/mgidx.yaml
+++ b/src/main/resources/bidder-config/mgidx.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: mgidX
       iframe:
         url: https://cm.mgid.com/i.gif?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&adu={redirect_url}
-        support-cors: false
         uid-macro: '{muidn}'
       redirect:
         url: https://cm.mgid.com/i.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&adu={redirect_url}
-        support-cors: false
         uid-macro: '{muidn}'
diff --git a/src/main/resources/bidder-config/minutemedia.yaml b/src/main/resources/bidder-config/minutemedia.yaml
index c3160298935..6ae40499219 100644
--- a/src/main/resources/bidder-config/minutemedia.yaml
+++ b/src/main/resources/bidder-config/minutemedia.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: minutemedia
       iframe:
         url: https://pbs-cs.minutemedia-prebid.com/pbs-iframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[PBS_UID]'
diff --git a/src/main/resources/bidder-config/missena.yaml b/src/main/resources/bidder-config/missena.yaml
index d61941aa016..27484ad7b7b 100644
--- a/src/main/resources/bidder-config/missena.yaml
+++ b/src/main/resources/bidder-config/missena.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: missena
       iframe:
         url: https://sync.missena.io/iframe?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/mobilefuse.yaml b/src/main/resources/bidder-config/mobilefuse.yaml
index 1938b4b5f9b..ef9deeac80d 100644
--- a/src/main/resources/bidder-config/mobilefuse.yaml
+++ b/src/main/resources/bidder-config/mobilefuse.yaml
@@ -23,9 +23,7 @@ adapters:
         cookie-family-name: mobilefuse
         iframe:
           url: https://mfx.mobilefuse.com/usync?us_privacy={us_privacy}&pxurl={redirect_url}
-          support-cors: false
           uid-macro: '$UID'
         redirect:
           url: https://mfx.mobilefuse.com/getuid?us_privacy={us_privacy}&redir={redirect_url}
-          support-cors: false
           uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/msft.yaml b/src/main/resources/bidder-config/msft.yaml
index ea5f07c2673..b53494fc034 100644
--- a/src/main/resources/bidder-config/msft.yaml
+++ b/src/main/resources/bidder-config/msft.yaml
@@ -18,7 +18,6 @@ adapters:
       cookie-family-name: adnxs
       redirect:
         url: https://ib.adnxs.com/getuid?{redirect_url}
-        support-cors: false
         uid-macro: '$UID'
     platform-id: 5
     iab-categories:
diff --git a/src/main/resources/bidder-config/nativo.yaml b/src/main/resources/bidder-config/nativo.yaml
index fbd961574d2..919633b9c0a 100644
--- a/src/main/resources/bidder-config/nativo.yaml
+++ b/src/main/resources/bidder-config/nativo.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: nativo
       redirect:
         url: https://jadserve.postrelease.com/suid/101787?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&ntv_gpp_consent={gpp}&ntv_r={redirect_url}
-        support-cors: false
         uid-macro: 'NTV_USER_ID'
diff --git a/src/main/resources/bidder-config/nextmillennium.yaml b/src/main/resources/bidder-config/nextmillennium.yaml
index e9c9be1c9ff..27c2fc0697e 100644
--- a/src/main/resources/bidder-config/nextmillennium.yaml
+++ b/src/main/resources/bidder-config/nextmillennium.yaml
@@ -16,9 +16,7 @@ adapters:
       cookie-family-name: nextmillennium
       iframe:
         url: https://cookies.nextmillmedia.com/sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[NMUID]'
       redirect:
         url: https://cookies.nextmillmedia.com/sync?type=image&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[NMUID]'
diff --git a/src/main/resources/bidder-config/nexx360.yaml b/src/main/resources/bidder-config/nexx360.yaml
index 234cbe35552..129fcaaf95e 100644
--- a/src/main/resources/bidder-config/nexx360.yaml
+++ b/src/main/resources/bidder-config/nexx360.yaml
@@ -29,9 +29,7 @@ adapters:
       cookie-family-name: nexx360
       redirect:
         url: https://fast.nexx360.io/usermatchredir/redirect?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gppsid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://fast.nexx360.io/usermatchredir/iframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/nobid.yaml b/src/main/resources/bidder-config/nobid.yaml
index 6a8e4a9de6d..690d7267229 100644
--- a/src/main/resources/bidder-config/nobid.yaml
+++ b/src/main/resources/bidder-config/nobid.yaml
@@ -15,9 +15,7 @@ adapters:
       cookie-family-name: nobid
       redirect:
         url: https://ads.servenobid.com/getsync?tek=pbs&ver=1&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://public.servenobid.com/sync.html?tek=pbs&ver=1&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/ogury.yaml b/src/main/resources/bidder-config/ogury.yaml
index 14682e11eae..99f970b841f 100644
--- a/src/main/resources/bidder-config/ogury.yaml
+++ b/src/main/resources/bidder-config/ogury.yaml
@@ -16,8 +16,6 @@ adapters:
       iframe:
         url: https://ms-cookie-sync.presage.io/user-sync.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}&gpp={gpp}&gpp_sid={gpp_sid}&source=prebids2s
         uid-macro: "{{OGURY_UID}}"
-        support-cors: false
       redirect:
         url: https://ms-cookie-sync.presage.io/user-sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}&gpp={gpp}&gpp_sid={gpp_sid}&partner=prebids2s
         uid-macro: "{{OGURY_UID}}"
-        support-cors: false
diff --git a/src/main/resources/bidder-config/onetag.yaml b/src/main/resources/bidder-config/onetag.yaml
index d3034369ce3..d815f99baf3 100644
--- a/src/main/resources/bidder-config/onetag.yaml
+++ b/src/main/resources/bidder-config/onetag.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: onetag
       iframe:
         url: https://onetag-sys.com/usync/?redir={redirect_url}&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}
-        support-cors: false
         uid-macro: '${USER_TOKEN}'
       redirect:
         url: https://onetag-sys.com/usync/?tag=img&redir={redirect_url}&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}
-        support-cors: false
         uid-macro: '${USER_TOKEN}'
diff --git a/src/main/resources/bidder-config/openweb.yaml b/src/main/resources/bidder-config/openweb.yaml
index c8c8ad7a719..67f82286c66 100644
--- a/src/main/resources/bidder-config/openweb.yaml
+++ b/src/main/resources/bidder-config/openweb.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: openweb
       iframe:
         url: https://pbs-cs.openwebmp.com/pbs-iframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[PBS_UID]'
diff --git a/src/main/resources/bidder-config/openx.yaml b/src/main/resources/bidder-config/openx.yaml
index 794d9a26b8a..a1c17022f09 100644
--- a/src/main/resources/bidder-config/openx.yaml
+++ b/src/main/resources/bidder-config/openx.yaml
@@ -19,8 +19,6 @@ adapters:
       cookie-family-name: openx
       iframe:
         url: https://u.openx.net/w/1.0/cm?id=891039ac-a916-42bb-a651-4be9e3b201da&ph=a3aece0c-9e80-4316-8deb-faf804779bd1&gdpr={gdpr}&gdpr_consent={gdpr_consent}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-        support-cors: false
       redirect:
         url: https://rtb.openx.net/sync/prebid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-        support-cors: false
         uid-macro: '${UID}'
diff --git a/src/main/resources/bidder-config/operaads.yaml b/src/main/resources/bidder-config/operaads.yaml
index ec626e211b2..e4b2f76650c 100644
--- a/src/main/resources/bidder-config/operaads.yaml
+++ b/src/main/resources/bidder-config/operaads.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: operaads
       redirect:
         url: https://t.adx.opera.com/pbs/sync?gdpr={gdpr}&us_privacy={us_privacy}&gdpr_consent={gdpr_consent}&r={redirect_url}
-        support-cors: false
         uid-macro: '${UID}'
diff --git a/src/main/resources/bidder-config/optidigital.yaml b/src/main/resources/bidder-config/optidigital.yaml
index ab70d8ffb28..bab2b5b2196 100644
--- a/src/main/resources/bidder-config/optidigital.yaml
+++ b/src/main/resources/bidder-config/optidigital.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: optidigital
       iframe:
         url: https://scripts.opti-digital.com/js/presyncs2s.html?endpoint=optidigital&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/oraki.yaml b/src/main/resources/bidder-config/oraki.yaml
index 0aef9ca7ca2..283f1a23b32 100644
--- a/src/main/resources/bidder-config/oraki.yaml
+++ b/src/main/resources/bidder-config/oraki.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: oraki
       redirect:
-        support-cors: false
         url: https://sync.oraki.io/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/orbidder.yaml b/src/main/resources/bidder-config/orbidder.yaml
index 61f0e286bc5..7964743cbff 100644
--- a/src/main/resources/bidder-config/orbidder.yaml
+++ b/src/main/resources/bidder-config/orbidder.yaml
@@ -14,5 +14,4 @@ adapters:
       cookie-family-name: orbidder
       redirect:
         url: https://orbidder.otto.de/pbs-usersync?gdpr={gdpr}&consent={gdpr_consent}&redirect={redirect_url}
-        support-cors: true
         uid-macro: '[ODN_ID]'
diff --git a/src/main/resources/bidder-config/outbrain.yaml b/src/main/resources/bidder-config/outbrain.yaml
index c824a8fab1a..867d00338eb 100644
--- a/src/main/resources/bidder-config/outbrain.yaml
+++ b/src/main/resources/bidder-config/outbrain.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: outbrain
       redirect:
         url: https://prebidtest.zemanta.com/usersync/prebidtest?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&cb={redirect_url}
-        support-cors: false
         uid-macro: '__ZUID__'
diff --git a/src/main/resources/bidder-config/ownadx.yaml b/src/main/resources/bidder-config/ownadx.yaml
index 620fab49c40..c7e59fb92db 100644
--- a/src/main/resources/bidder-config/ownadx.yaml
+++ b/src/main/resources/bidder-config/ownadx.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: ownadx
       redirect:
         url: https://sync.spoutroserve.com/user-sync?t=image&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&s3={redirect_url}
-        support-cors: false
         uid-macro: '{USER_ID}'
diff --git a/src/main/resources/bidder-config/pgamssp.yaml b/src/main/resources/bidder-config/pgamssp.yaml
index 9abe8adca72..09c53d3e3c3 100644
--- a/src/main/resources/bidder-config/pgamssp.yaml
+++ b/src/main/resources/bidder-config/pgamssp.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: pgamssp
       redirect:
         url: https://cs.pgammedia.com/pserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&r={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/playdigo.yaml b/src/main/resources/bidder-config/playdigo.yaml
index 083f470522e..bef2db75588 100644
--- a/src/main/resources/bidder-config/playdigo.yaml
+++ b/src/main/resources/bidder-config/playdigo.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: playdigo
       redirect:
         url: https://cs.playdigo.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
       iframe:
         url: https://cs.playdigo.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/preciso.yaml b/src/main/resources/bidder-config/preciso.yaml
index 6bfd3014c54..1632792e391 100644
--- a/src/main/resources/bidder-config/preciso.yaml
+++ b/src/main/resources/bidder-config/preciso.yaml
@@ -18,9 +18,7 @@ adapters:
       cookie-family-name: preciso
       redirect: 
         url: https://ck.2trk.info/rtb/user/usersync.aspx?id=preciso_srl&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&t=2&redir={redirect_url}
-        support-cors: false
         uid-macro: '${PRECISO_USER_ID}'
       iframe:
         url: https://ck.2trk.info/rtb/user/usersync.aspx?id=preciso_srl&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&t=4&redir={redirect_url}
-        support-cors: false
         uid-macro: '${PRECISO_USER_ID}'
diff --git a/src/main/resources/bidder-config/pubmatic.yaml b/src/main/resources/bidder-config/pubmatic.yaml
index c4a36d5a4d0..12d57c93ade 100644
--- a/src/main/resources/bidder-config/pubmatic.yaml
+++ b/src/main/resources/bidder-config/pubmatic.yaml
@@ -19,8 +19,6 @@ adapters:
       cookie-family-name: pubmatic
       iframe:
         url: https://ads.pubmatic.com/AdServer/js/user_sync.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&predirect={redirect_url}
-        support-cors: false
       redirect:
         url: https://image8.pubmatic.com/AdServer/ImgSync?p=159706&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pu={redirect_url}
-        support-cors: false
         uid-macro: '#PMUID'
diff --git a/src/main/resources/bidder-config/pubrise.yaml b/src/main/resources/bidder-config/pubrise.yaml
index 60fbea6bcf2..aabad2fea55 100644
--- a/src/main/resources/bidder-config/pubrise.yaml
+++ b/src/main/resources/bidder-config/pubrise.yaml
@@ -16,10 +16,8 @@ adapters:
     usersync:
       cookie-family-name: pubrise
       redirect:
-        support-cors: false
         url: https://sync.pubrise.ai/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
         uid-macro: '[UID]'
       iframe:
-        support-cors: false
         url: https://sync.pubrise.ai/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/pulsepoint.yaml b/src/main/resources/bidder-config/pulsepoint.yaml
index 82212c00566..30f08c63394 100644
--- a/src/main/resources/bidder-config/pulsepoint.yaml
+++ b/src/main/resources/bidder-config/pulsepoint.yaml
@@ -20,5 +20,4 @@ adapters:
       cookie-family-name: pulsepoint
       redirect:
         url: https://bh.contextweb.com/rtset?pid=561205&ev=1&rurl={redirect_url}
-        support-cors: false
         uid-macro: '%%VGUID%%'
diff --git a/src/main/resources/bidder-config/qt.yaml b/src/main/resources/bidder-config/qt.yaml
index ee66f765263..0c9dc02f767 100644
--- a/src/main/resources/bidder-config/qt.yaml
+++ b/src/main/resources/bidder-config/qt.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: qt
       redirect:
-        support-cors: false
         url: https://cs.qt.io/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/resetdigital.yaml b/src/main/resources/bidder-config/resetdigital.yaml
index 990ab532849..5efda8c5b3c 100644
--- a/src/main/resources/bidder-config/resetdigital.yaml
+++ b/src/main/resources/bidder-config/resetdigital.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: resetdigital
       redirect:
         url: https://sync.resetdigital.co/csync?pid=rubicon&redir={redirect_url}
-        support-cors: false
         uid-macro: '$USER_ID'
diff --git a/src/main/resources/bidder-config/richaudience.yaml b/src/main/resources/bidder-config/richaudience.yaml
index 1147009970c..7a4bfdf66e6 100644
--- a/src/main/resources/bidder-config/richaudience.yaml
+++ b/src/main/resources/bidder-config/richaudience.yaml
@@ -15,9 +15,7 @@ adapters:
       cookie-family-name: richaudience
       iframe:
         url: https://sync.richaudience.com/74889303289e27f327ad0c6de7be7264/?consentString={gdpr_consent}&r={redirect_url}
-        support-cors: false
         uid-macro: '[PDID]'
       redirect:
         url: https://sync.richaudience.com/f7872c90c5d3791e2b51f7edce1a0a5d/?p=pbs&consentString={gdpr_consent}&r={redirect_url}
-        support-cors: false
         uid-macro: '[PDID]'
diff --git a/src/main/resources/bidder-config/rise.yaml b/src/main/resources/bidder-config/rise.yaml
index 8867849f2d1..617fc8a22a7 100644
--- a/src/main/resources/bidder-config/rise.yaml
+++ b/src/main/resources/bidder-config/rise.yaml
@@ -19,5 +19,4 @@ adapters:
       cookie-family-name: rise
       iframe:
         url: https://pbs-cs.yellowblue.io/pbs-iframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[PBS_UID]'
diff --git a/src/main/resources/bidder-config/rtbhouse.yaml b/src/main/resources/bidder-config/rtbhouse.yaml
index ccf847f7816..cd61200a319 100644
--- a/src/main/resources/bidder-config/rtbhouse.yaml
+++ b/src/main/resources/bidder-config/rtbhouse.yaml
@@ -30,4 +30,3 @@ adapters:
       cookie-family-name: rtbhouse
       redirect:
         url: https://creativecdn.com/cm-notify?pi=ASK_FOR_INTEGRATION_ID&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/rubicon.yaml b/src/main/resources/bidder-config/rubicon.yaml
index 8084f6d8f1f..88d48fafd27 100644
--- a/src/main/resources/bidder-config/rubicon.yaml
+++ b/src/main/resources/bidder-config/rubicon.yaml
@@ -36,7 +36,6 @@ adapters:
       cookie-family-name: rubicon
       redirect:
         url: https://GET_FROM_globalsupport@magnite.com
-        support-cors: false
     apex-renderer-url: "https://video-outstream.rubiconproject.com/apex-2.2.1.js"
     XAPI:
       Username: GET_FROM_globalsupport@magnite.com
diff --git a/src/main/resources/bidder-config/salunamedia.yaml b/src/main/resources/bidder-config/salunamedia.yaml
index 407ca8c6bd4..6541daff171 100644
--- a/src/main/resources/bidder-config/salunamedia.yaml
+++ b/src/main/resources/bidder-config/salunamedia.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: sa_lunamedia
       redirect:
         url: https://cookie.lmgssp.com/pserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/seedingAlliance.yaml b/src/main/resources/bidder-config/seedingAlliance.yaml
index 4b85eb1b14f..212dab14afe 100644
--- a/src/main/resources/bidder-config/seedingAlliance.yaml
+++ b/src/main/resources/bidder-config/seedingAlliance.yaml
@@ -12,7 +12,6 @@ adapters:
           cookie-family-name: suntContent
           redirect:
             url: https://dmp.suntcontent.se/set-uuid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&redirect_url={redirect_url}
-            support-cors: false
             uid-macro: '$UID'
       finative:
         enabled: false
@@ -29,5 +28,4 @@ adapters:
       cookie-family-name: seedingAlliance
       redirect:
         url: https://dmp.nativendo.de/set-uuid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&redirect_url={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/seedtag.yaml b/src/main/resources/bidder-config/seedtag.yaml
index 3447cd59b38..b90ff16745c 100644
--- a/src/main/resources/bidder-config/seedtag.yaml
+++ b/src/main/resources/bidder-config/seedtag.yaml
@@ -13,5 +13,4 @@ adapters:
       cookie-family-name: seedtag
       iframe:
         url: https://s.seedtag.com/cs/cookiesync/prebid?gdpr={gdpr}&gdpr_consent={gdpr_consent}&usp_consent={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/sharethrough.yaml b/src/main/resources/bidder-config/sharethrough.yaml
index aee106fa1fa..d658ef92458 100644
--- a/src/main/resources/bidder-config/sharethrough.yaml
+++ b/src/main/resources/bidder-config/sharethrough.yaml
@@ -20,5 +20,4 @@ adapters:
       cookie-family-name: sharethrough
       redirect:
         url: https://match.sharethrough.com/FGMrCMMc/v1?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirectUri={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/smaato.yaml b/src/main/resources/bidder-config/smaato.yaml
index 1d8586e494f..ba6759e849e 100644
--- a/src/main/resources/bidder-config/smaato.yaml
+++ b/src/main/resources/bidder-config/smaato.yaml
@@ -22,9 +22,7 @@ adapters:
       cookie-family-name: smaato
       redirect:
         url: https://s.ad.smaato.net/c/?adExInit=p&redir={redirect_url}&gdpr={gdpr}&gdpr_consent={gdpr_consent}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://s.ad.smaato.net/i/?adExInit=p&redir={redirect_url}&gdpr={gdpr}&gdpr_consent={gdpr_consent}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/smartadserver.yaml b/src/main/resources/bidder-config/smartadserver.yaml
index 8db161d6ff9..cfb95121f45 100644
--- a/src/main/resources/bidder-config/smartadserver.yaml
+++ b/src/main/resources/bidder-config/smartadserver.yaml
@@ -24,5 +24,4 @@ adapters:
       cookie-family-name: smartadserver
       redirect:
         url: https://ssbsync-global.smartadserver.com/api/sync?callerId=5&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirectUri={redirect_url}
-        support-cors: false
         uid-macro: '[ssb_sync_pid]'
diff --git a/src/main/resources/bidder-config/smartrtb.yaml b/src/main/resources/bidder-config/smartrtb.yaml
index 24e6257eeb7..63e29766464 100644
--- a/src/main/resources/bidder-config/smartrtb.yaml
+++ b/src/main/resources/bidder-config/smartrtb.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: smartrtb
       redirect:
         url: https://market-global.smrtb.com/sync/all?nid=smartrtb&gdpr={gdpr}&gdpr_consent={gdpr_consent}&rr={redirect_url}
-        support-cors: false
         uid-macro: '{XID}'
diff --git a/src/main/resources/bidder-config/smartyads.yaml b/src/main/resources/bidder-config/smartyads.yaml
index cc44bcfcd5f..fd2fc6bc4f7 100644
--- a/src/main/resources/bidder-config/smartyads.yaml
+++ b/src/main/resources/bidder-config/smartyads.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: smartyads
       redirect:
         url: https://us.ck-ie.com/yhsfle286.gif?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '{$PARTNER_UID}'
diff --git a/src/main/resources/bidder-config/smilewanted.yaml b/src/main/resources/bidder-config/smilewanted.yaml
index 69f485e4ce5..659d74f9b0c 100644
--- a/src/main/resources/bidder-config/smilewanted.yaml
+++ b/src/main/resources/bidder-config/smilewanted.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: smilewanted
       redirect:
         url: https://csync.smilewanted.com/getuid?source=prebid-server&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/smoot.yaml b/src/main/resources/bidder-config/smoot.yaml
index 3365ac2bb63..b040332fac2 100644
--- a/src/main/resources/bidder-config/smoot.yaml
+++ b/src/main/resources/bidder-config/smoot.yaml
@@ -16,6 +16,5 @@ adapters:
     usersync:
       cookie-family-name: smoot
       redirect:
-        support-cors: false
         url: 'https://usync.smxconv.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}'
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/sonobi.yaml b/src/main/resources/bidder-config/sonobi.yaml
index 55f840f14eb..578b4e2d467 100644
--- a/src/main/resources/bidder-config/sonobi.yaml
+++ b/src/main/resources/bidder-config/sonobi.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: sonobi
       iframe:
         url: https://sync.go.sonobi.com/uc.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&loc={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
       redirect:
         url: https://sync.go.sonobi.com/us.gif?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&loc={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/sovrn.yaml b/src/main/resources/bidder-config/sovrn.yaml
index 8029b658626..a4acbcb06b2 100644
--- a/src/main/resources/bidder-config/sovrn.yaml
+++ b/src/main/resources/bidder-config/sovrn.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: sovrn
       redirect:
         url: https://ap.lijit.com/pixel?redir={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       iframe:
         url: https://ap.lijit.com/beacon/prebid-server/?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&url={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/sparteo.yaml b/src/main/resources/bidder-config/sparteo.yaml
index 9a4bb2baf92..5ae06817ba8 100644
--- a/src/main/resources/bidder-config/sparteo.yaml
+++ b/src/main/resources/bidder-config/sparteo.yaml
@@ -17,4 +17,3 @@ adapters:
       cookie-family-name: sparteo
       iframe:
         url: "https://sync.sparteo.com/s2s_sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&&gpp_sid={gpp_sid}&redirect_url={redirect_url}"
-        support-cors: true
diff --git a/src/main/resources/bidder-config/sspbc.yaml b/src/main/resources/bidder-config/sspbc.yaml
index 06772cb5c3c..7b3258e1667 100644
--- a/src/main/resources/bidder-config/sspbc.yaml
+++ b/src/main/resources/bidder-config/sspbc.yaml
@@ -12,9 +12,7 @@ adapters:
       cookie-family-name: sspbc
       iframe:
         url: https://ssp.wp.pl/bidder/usersync?tcf=2&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://ssp.wp.pl/v1/sync/prebid-server/pixel?gdpr={gdpr}&gdpr_consent={gdpr_consent}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/stroeercore.yaml b/src/main/resources/bidder-config/stroeercore.yaml
index 2169fa19cde..d9ab58656be 100644
--- a/src/main/resources/bidder-config/stroeercore.yaml
+++ b/src/main/resources/bidder-config/stroeercore.yaml
@@ -15,7 +15,5 @@ adapters:
       cookie-family-name: stroeerCore
       iframe:
         url: https://js.adscale.de/pbsync.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&redirect={redirect_url}
-        support-cors: false
       redirect:
         url: https://ih.adscale.de/uu?gdpr={gdpr}&gdpr_consent={gdpr_consent}&cburl={redirect_url}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/taboola.yaml b/src/main/resources/bidder-config/taboola.yaml
index 4ea05d13882..23c836850a5 100644
--- a/src/main/resources/bidder-config/taboola.yaml
+++ b/src/main/resources/bidder-config/taboola.yaml
@@ -16,10 +16,8 @@ adapters:
       cookie-family-name: taboola
       redirect:
         url: https://trc.taboola.com/sg/ps/1/cm?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '<TUID>'
       iframe:
         url: https://cdn.taboola.com/scripts/ps-sync.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '<TUID>'
 
diff --git a/src/main/resources/bidder-config/tappx.yaml b/src/main/resources/bidder-config/tappx.yaml
index 0dd1d31fb7d..27be1eb769f 100644
--- a/src/main/resources/bidder-config/tappx.yaml
+++ b/src/main/resources/bidder-config/tappx.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: tappx
       iframe:
         url: https://ssp.api.tappx.com/cs/usersync.php?gdpr_optin={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&type=iframe&ruid={redirect_url}
-        support-cors: false
         uid-macro: '{{TPPXUID}}'
diff --git a/src/main/resources/bidder-config/teal.yaml b/src/main/resources/bidder-config/teal.yaml
index 3df79c3b9e8..38f06be0be3 100644
--- a/src/main/resources/bidder-config/teal.yaml
+++ b/src/main/resources/bidder-config/teal.yaml
@@ -27,4 +27,3 @@ adapters:
       cookie-family-name: teal
       iframe:
         url: https://bids.ws/load-pbs.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect_url={redirect_url}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/teqblaze.yaml b/src/main/resources/bidder-config/teqblaze.yaml
index 76c051d8646..094beaec09a 100644
--- a/src/main/resources/bidder-config/teqblaze.yaml
+++ b/src/main/resources/bidder-config/teqblaze.yaml
@@ -12,12 +12,10 @@ adapters:
           cookie-family-name: 360playvid
           redirect:
             url: https://cookie.360playvid.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&coppa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-            support-cors: false
             uid-macro: '[UID]'
           iframe:
             url: https://cookie.360playvid.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
             uid-macro: '[UID]'
-            support-cors: false
       pinkLion:
         enabled: false
         endpoint: https://us-east-ep.pinklion.io/pserver
@@ -33,7 +31,6 @@ adapters:
           cookie-family-name: rocketlab
           redirect:
             url: https://usync.rocketlab.ai/pbserver?gdpr={gdpr}&consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-            support-cors: false
             uid-macro: '[UID]'
       appStockSSP:
         enabled: false
@@ -47,11 +44,9 @@ adapters:
           cookie-family-name: appStockSSP
           redirect:
             url: https://csync.al-ad.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-            support-cors: false
             uid-macro: '[UID]'
           iframe:
             url: "https://csync.al-ad.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}"
-            support-cors: false
             uid-macro: '[UID]'
       gravite:
         enabled: false
@@ -69,11 +64,9 @@ adapters:
           cookie-family-name: bidfuse
           redirect:
             url: https://syncbf.bidfuse.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-            support-cors: false
             uid-macro: '[UID]'
           iframe:
             url: https://syncbf.bidfuse.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
-            support-cors: false
             uid-macro: '[UID]'
       progx:
         enabled: false
@@ -86,11 +79,9 @@ adapters:
           cookie-family-name: progx
           iframe:
             url: https://sync.progrtb.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={.RedirectURL}
-            support-cors: false
             uid-macro: '[UID]'
           redirect:
             url: https://sync.progrtb.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-            support-cors: false
             uid-macro: '[UID]'
       harion:
         enabled: false
@@ -108,11 +99,9 @@ adapters:
           cookie-family-name: mycodemedia
           iframe:
             url: https://usersync.mycodemedia.com/pbserverIframe?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&pbserverUrl={redirect_url}
-            support-cors: false
             uid-macro: '[UID]'
           redirect:
             url: https://usersync.mycodemedia.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-            support-cors: false
             uid-macro: '[UID]'
       adsmovil:
         enabled: false
diff --git a/src/main/resources/bidder-config/theadx.yaml b/src/main/resources/bidder-config/theadx.yaml
index 2118ee34c08..5d79e2f19ea 100644
--- a/src/main/resources/bidder-config/theadx.yaml
+++ b/src/main/resources/bidder-config/theadx.yaml
@@ -18,5 +18,4 @@ adapters:
       cookie-family-name: theadx
       redirect:
         url: https://ssp.theadx.com/cookie?redirect_url={redirect_url}&?pbs=1
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/thirtythreeacross.yaml b/src/main/resources/bidder-config/thirtythreeacross.yaml
index 24dd7e5e6b3..990440ca78d 100644
--- a/src/main/resources/bidder-config/thirtythreeacross.yaml
+++ b/src/main/resources/bidder-config/thirtythreeacross.yaml
@@ -21,5 +21,4 @@ adapters:
       cookie-family-name: 33across
       iframe:
         url: https://ssc-cms.33across.com/ps/?m=xch&rt=html&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&id=zzz000000000002zzz&ru={redirect_url}
-        support-cors: false
         uid-macro: '33XUSERID33X'
diff --git a/src/main/resources/bidder-config/tpmn.yaml b/src/main/resources/bidder-config/tpmn.yaml
index 0f762d4b531..1e0ee172dfe 100644
--- a/src/main/resources/bidder-config/tpmn.yaml
+++ b/src/main/resources/bidder-config/tpmn.yaml
@@ -20,4 +20,3 @@ adapters:
       iframe:
         url: https://gat.tpmn.io/sync/redirect?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}
         uid-macro: $UID
-        support-cors: false
diff --git a/src/main/resources/bidder-config/triplelift.yaml b/src/main/resources/bidder-config/triplelift.yaml
index 56f0daf17f2..65e6fe6bfe6 100644
--- a/src/main/resources/bidder-config/triplelift.yaml
+++ b/src/main/resources/bidder-config/triplelift.yaml
@@ -17,9 +17,7 @@ adapters:
       cookie-family-name: triplelift
       iframe:
         url: https://eb2.3lift.com/sync?gdpr={gdpr}&cmp_cs={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://eb2.3lift.com/getuid?gdpr={gdpr}&cmp_cs={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/tripleliftnative.yaml b/src/main/resources/bidder-config/tripleliftnative.yaml
index dd11c0f093e..16447e46f01 100644
--- a/src/main/resources/bidder-config/tripleliftnative.yaml
+++ b/src/main/resources/bidder-config/tripleliftnative.yaml
@@ -14,10 +14,8 @@ adapters:
       cookie-family-name: triplelift_native
       iframe:
         url: https://eb2.3lift.com/sync?gdpr={gdpr}&cmp_cs={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://eb2.3lift.com/getuid?gdpr={gdpr}&cmp_cs={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redir={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
     whitelist:
diff --git a/src/main/resources/bidder-config/trustedstack.yaml b/src/main/resources/bidder-config/trustedstack.yaml
index 709c0b591b1..f9c0252ef84 100644
--- a/src/main/resources/bidder-config/trustedstack.yaml
+++ b/src/main/resources/bidder-config/trustedstack.yaml
@@ -19,9 +19,7 @@ adapters:
       cookie-family-name: trustedstack
       iframe:
         url: https://hb.trustedstack.com/checksync.php?cid=TS2Q14L8J&cs=87&type=mpbc&cv=37&vsSync=1&uspstring={us_privacy}&gdpr={gdpr}&gdprstring={gdpr_consent}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '<vsid>'
       redirect:
         url: https://hb.trustedstack.com/cksync?cs=1&type=pbs&ovsid=setstatuscode&bidder=trustedstack&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '<vsid>'
diff --git a/src/main/resources/bidder-config/trustx.yaml b/src/main/resources/bidder-config/trustx.yaml
index 2e81cafd8e6..42197b793cb 100644
--- a/src/main/resources/bidder-config/trustx.yaml
+++ b/src/main/resources/bidder-config/trustx.yaml
@@ -15,9 +15,7 @@ adapters:
       cookie-family-name: trustx
       iframe:
         url: https://static.cdn.trustx.org/x/user_sync.html?source=pbs&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
       redirect:
         url: https://sync.trustx.org/usync-pbs?us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/ucfunnel.yaml b/src/main/resources/bidder-config/ucfunnel.yaml
index 14c7306401c..3dd90565544 100644
--- a/src/main/resources/bidder-config/ucfunnel.yaml
+++ b/src/main/resources/bidder-config/ucfunnel.yaml
@@ -16,5 +16,4 @@ adapters:
       redirect:
   # for syncing to work, please register your Prebid Server domain with the contact email above
         url: https://sync.aralego.com/idsync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&usprivacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: 'SspCookieUserId'
diff --git a/src/main/resources/bidder-config/undertone.yaml b/src/main/resources/bidder-config/undertone.yaml
index 899e523cf43..1d82c72702f 100644
--- a/src/main/resources/bidder-config/undertone.yaml
+++ b/src/main/resources/bidder-config/undertone.yaml
@@ -18,4 +18,3 @@ adapters:
       iframe:
         url: https://cdn.undertone.com/js/usersync.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
         uid-macro: '$UID'
-        support-cors: false
diff --git a/src/main/resources/bidder-config/unruly.yaml b/src/main/resources/bidder-config/unruly.yaml
index f6d4bdbad80..d42f4a988d6 100644
--- a/src/main/resources/bidder-config/unruly.yaml
+++ b/src/main/resources/bidder-config/unruly.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: unruly
       redirect:
         url: https://sync.1rx.io/usersync2/rmphb?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[RX_UUID]'
diff --git a/src/main/resources/bidder-config/vidazoo.yaml b/src/main/resources/bidder-config/vidazoo.yaml
index bc9ab022d63..b116a231baa 100644
--- a/src/main/resources/bidder-config/vidazoo.yaml
+++ b/src/main/resources/bidder-config/vidazoo.yaml
@@ -10,7 +10,6 @@ adapters:
           vendor-id: 1463
           iframe:
             url: https://sync.omni-dex.io/api/user/html/6810d0c7f163277130f3d7a9?pbs=true&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}&gpp={gpp}&gpp_sid={gpp_sid}
-            support-cors: false
             uid-macro: '${userId}'
       tagoras:
         endpoint: https://exchange.tagoras.io/openrtb/{ConnectionId}
@@ -21,7 +20,6 @@ adapters:
           cookie-family-name: tagoras
           iframe:
             url: https://sync.tagoras.io/api/user/html/6819bdc3e6bb44545c55f843?pbs=true&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}&gpp={gpp}&gpp_sid={gpp_sid}
-            support-cors: false
             uid-macro: '${userId}'
     endpoint-compression: gzip
     ortb-version: "2.6"
@@ -39,5 +37,4 @@ adapters:
       cookie-family-name: vidazoo
       iframe:
         url: https://sync.cootlogix.com/api/user/html/pbs_sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}&gpp={gpp}&gpp_sid={gpp_sid}
-        support-cors: false
         uid-macro: '${userId}'
diff --git a/src/main/resources/bidder-config/videobyte.yaml b/src/main/resources/bidder-config/videobyte.yaml
index e1c73fc9e3d..dc9ca6baf09 100644
--- a/src/main/resources/bidder-config/videobyte.yaml
+++ b/src/main/resources/bidder-config/videobyte.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: videobyte
       redirect:
         url: https://x.videobyte.com/usync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&cb={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/vidoomy.yaml b/src/main/resources/bidder-config/vidoomy.yaml
index f09ac2d4e31..d79ca3c4fde 100644
--- a/src/main/resources/bidder-config/vidoomy.yaml
+++ b/src/main/resources/bidder-config/vidoomy.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: vidoomy
       iframe:
         url: https://vid.vidoomy.com/sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirect={redirect_url}
-        support-cors: false
         uid-macro: '{{VID}}'
diff --git a/src/main/resources/bidder-config/visiblemeasures.yaml b/src/main/resources/bidder-config/visiblemeasures.yaml
index e9cde5b32f6..e63c6451df5 100644
--- a/src/main/resources/bidder-config/visiblemeasures.yaml
+++ b/src/main/resources/bidder-config/visiblemeasures.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: visiblemeasures
       redirect:
         url: https://cs.visiblemeasures.com/pbserver?gdpr={gdpr}&gdpr_consent={gdpr_consent}&ccpa={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '[UID]'
diff --git a/src/main/resources/bidder-config/visx.yaml b/src/main/resources/bidder-config/visx.yaml
index d2bf2041468..2094c100e0b 100644
--- a/src/main/resources/bidder-config/visx.yaml
+++ b/src/main/resources/bidder-config/visx.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: visx
       redirect:
         url: https://t.visx.net/s2s_sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redir={redirect_url}
-        support-cors: false
         uid-macro: '${UUID}'
diff --git a/src/main/resources/bidder-config/vox.yaml b/src/main/resources/bidder-config/vox.yaml
index 140c29fbaf5..e0f33ac2b02 100644
--- a/src/main/resources/bidder-config/vox.yaml
+++ b/src/main/resources/bidder-config/vox.yaml
@@ -18,4 +18,3 @@ adapters:
       iframe:
         url: https://ssp.hybrid.ai/prebid/server/v1/userSync?consent={gdpr_consent}&redirect={redirect_url}
         uid-macro: $UID
-        support-cors: false
diff --git a/src/main/resources/bidder-config/vrtcal.yaml b/src/main/resources/bidder-config/vrtcal.yaml
index 4b56cd5f0f4..4b98470422b 100644
--- a/src/main/resources/bidder-config/vrtcal.yaml
+++ b/src/main/resources/bidder-config/vrtcal.yaml
@@ -18,9 +18,7 @@ adapters:
       cookie-family-name: vrtcal
       redirect:
         url: https://usync.vrtcal.com/i?ssp=1804&synctype=redirect&us_privacy={us_privacy}&gdpr={gdpr}&gdpr_consent={gdpr_consent}&gpp={gpp}&gpp_sid={gpp_sid}&surl={redirect_url}
-        support-cors: false
         uid-macro: '$$VRTCALUSER$$'
       iframe:
         url: https://usync.vrtcal.com/i?ssp=1804&synctype=iframe&us_privacy={us_privacy}&gdpr={gdpr}&gdpr_consent={gdpr_consent}&gpp={gpp}&gpp_sid={gpp_sid}&surl={redirect_url}
-        support-cors: false
         uid-macro: '$$VRTCALUSER$$'
diff --git a/src/main/resources/bidder-config/xeworks.yaml b/src/main/resources/bidder-config/xeworks.yaml
index bcb76eaebd6..c37e5b098a0 100644
--- a/src/main/resources/bidder-config/xeworks.yaml
+++ b/src/main/resources/bidder-config/xeworks.yaml
@@ -18,11 +18,9 @@ adapters:
           cookie-family-name: adipolo
           redirect:
             url: https://sync.adipolo.live/psync?t=s&e=0&gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&cb={redirect_url}
-            support-cors: false
             uid-macro: '$UID'
           iframe:
             url: https://sync.adipolo.live/static/adisync.html?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&cb={redirect_url}
-            support-cors: false
             uid-macro: '$UID'
     meta-info:
       maintainer-email: team@xe.works
@@ -40,4 +38,3 @@ adapters:
       cookie-family-name: xeworks
       redirect:
         url: https://GET_FROM_team@xe.works
-        support-cors: false
diff --git a/src/main/resources/bidder-config/yahooAds.yaml b/src/main/resources/bidder-config/yahooAds.yaml
index b3657144a21..c45be2e9377 100644
--- a/src/main/resources/bidder-config/yahooAds.yaml
+++ b/src/main/resources/bidder-config/yahooAds.yaml
@@ -20,4 +20,3 @@ adapters:
       cookie-family-name: yahooAds
       redirect:
         url: https://ups.analytics.yahoo.com/ups/58401/sync?redir=true&gdpr={gdpr}&gdpr_consent={gdpr_consent}
-        support-cors: false
diff --git a/src/main/resources/bidder-config/yandex.yaml b/src/main/resources/bidder-config/yandex.yaml
index 602aa18c1c6..e095ef69719 100644
--- a/src/main/resources/bidder-config/yandex.yaml
+++ b/src/main/resources/bidder-config/yandex.yaml
@@ -14,5 +14,4 @@ adapters:
       cookie-family-name: yandex
       redirect:
         url: https://yandex.ru/an/mapuid/yandex/?ssp-id=10500&gdpr={gdpr}&gdpr_consent={gdpr_consent}&location={redirect_url}
-        support-cors: false
         uid-macro: '{YANDEXUID}'
diff --git a/src/main/resources/bidder-config/yieldlab.yaml b/src/main/resources/bidder-config/yieldlab.yaml
index bee28fd34dd..b6065be4cd9 100644
--- a/src/main/resources/bidder-config/yieldlab.yaml
+++ b/src/main/resources/bidder-config/yieldlab.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: yieldlab
       redirect:
         url: https://ad.yieldlab.net/mr?t=2&pid=9140838&gdpr={gdpr}&gdpr_consent={gdpr_consent}&r={redirect_url}
-        support-cors: false
         uid-macro: '%%YL_UID%%'
diff --git a/src/main/resources/bidder-config/yieldmo.yaml b/src/main/resources/bidder-config/yieldmo.yaml
index 9c553ad2429..d224826a893 100644
--- a/src/main/resources/bidder-config/yieldmo.yaml
+++ b/src/main/resources/bidder-config/yieldmo.yaml
@@ -16,5 +16,4 @@ adapters:
       cookie-family-name: yieldmo
       redirect:
         url: https://ads.yieldmo.com/pbsync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&gpp={gpp}&gpp_sid={gpp_sid}&redirectUri={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/yieldone.yaml b/src/main/resources/bidder-config/yieldone.yaml
index 89cce87bd8a..0eb1cd7e8f4 100644
--- a/src/main/resources/bidder-config/yieldone.yaml
+++ b/src/main/resources/bidder-config/yieldone.yaml
@@ -15,5 +15,4 @@ adapters:
       cookie-family-name: yieldone
       redirect:
         url: https://y.one.impact-ad.jp/hbs_cs?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&redirectUri={redirect_url}
-        support-cors: false
         uid-macro: '$UID'
diff --git a/src/main/resources/bidder-config/zeroclickfraud.yaml b/src/main/resources/bidder-config/zeroclickfraud.yaml
index d78d330be09..1308e268329 100644
--- a/src/main/resources/bidder-config/zeroclickfraud.yaml
+++ b/src/main/resources/bidder-config/zeroclickfraud.yaml
@@ -17,5 +17,4 @@ adapters:
       cookie-family-name: zeroclickfraud
       iframe:
         url: https://s.0cf.io/sync?gdpr={gdpr}&gdpr_consent={gdpr_consent}&us_privacy={us_privacy}&r={redirect_url}
-        support-cors: false
         uid-macro: '${uid}'
diff --git a/src/test/groovy/org/prebid/server/functional/model/response/cookiesync/UserSyncInfo.groovy b/src/test/groovy/org/prebid/server/functional/model/response/cookiesync/UserSyncInfo.groovy
index 0ddb8dd7d10..a13646f01c4 100644
--- a/src/test/groovy/org/prebid/server/functional/model/response/cookiesync/UserSyncInfo.groovy
+++ b/src/test/groovy/org/prebid/server/functional/model/response/cookiesync/UserSyncInfo.groovy
@@ -8,7 +8,6 @@ class UserSyncInfo {
 
     String url
     Type type
-    Boolean supportCORS
 
     enum Type {
 
diff --git a/src/test/groovy/org/prebid/server/functional/tests/AuctionSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/AuctionSpec.groovy
index 1506e2e0a4d..9a48addc0df 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/AuctionSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/AuctionSpec.groovy
@@ -43,14 +43,12 @@ import static org.prebid.server.functional.util.SystemProperties.PBS_VERSION
 class AuctionSpec extends BaseSpec {
 
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
-    private static final Boolean CORS_SUPPORT = false
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
     private static final Integer DEFAULT_TIMEOUT = getRandomTimeout()
     private static final Integer MIN_BID_ID_LENGTH = 17
     private static final Integer DEFAULT_UUID_LENGTH = 36
     private static final Map<String, String> GENERIC_CONFIG = [
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL]
     @Shared
     PrebidServerService prebidServerService = pbsServiceFactory.getService(PBS_CONFIG)
 
@@ -189,8 +187,7 @@ class AuctionSpec extends BaseSpec {
     def "PBS should populate buyeruid from uids cookie when buyeruids with appropriate bidder but without value present in request"() {
         given: "PBS config"
         def prebidServerService = pbsServiceFactory.getService(PBS_CONFIG
-                + ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : USER_SYNC_URL,
-                   "adapters.${GENERIC.value}.usersync.${REDIRECT.value}.support-cors": "false"])
+                + ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : USER_SYNC_URL])
 
         and: "Bid request with buyeruids"
         def bidRequest = BidRequest.defaultBidRequest.tap {
@@ -212,8 +209,7 @@ class AuctionSpec extends BaseSpec {
     def "PBS shouldn't populate buyeruid from uids cookie when buyeruids with appropriate bidder but without value present in request"() {
         given: "PBS config"
         def prebidServerService = pbsServiceFactory.getService(PBS_CONFIG
-                + ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : USER_SYNC_URL,
-                   "adapters.${GENERIC.value}.usersync.${REDIRECT.value}.support-cors": "false"])
+                + ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : USER_SYNC_URL])
 
         and: "Bid request with buyeruids"
         def bidRequest = BidRequest.defaultBidRequest.tap {
diff --git a/src/test/groovy/org/prebid/server/functional/tests/CookieSyncSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/CookieSyncSpec.groovy
index b3f6adf3e64..a08ca0e6c2d 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/CookieSyncSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/CookieSyncSpec.groovy
@@ -55,41 +55,33 @@ import static org.prebid.server.functional.util.privacy.TcfConsent.RUBICON_VENDO
 class CookieSyncSpec extends BaseSpec {
 
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
-    private static final boolean CORS_SUPPORT = false
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
     private static final String ALL_BIDDERS = "*"
     private static final Integer DEFAULT_PBS_BIDDERS_SIZE = 8
 
     private static final Map<String, String> GENERIC_CONFIG = [
             "adapters.${GENERIC.value}.usersync.redirect.url"         : USER_SYNC_URL,
-            "adapters.${GENERIC.value}.usersync.redirect.support-cors": CORS_SUPPORT as String,
             "adapters.${GENERIC.value}.meta-info.vendor-id"           : GENERIC_VENDOR_ID as String]
     private static final Map<String, String> ACEEX_CONFIG = [
             "adapters.${ACEEX.value}.enabled"                       : "true",
             "adapters.${ACEEX.value}.usersync.cookie-family-name"   : ACEEX.value,
-            "adapters.${ACEEX.value}.usersync.redirect.url"         : "https://test.redirect.endpoint.com={redirect_url}",
-            "adapters.${ACEEX.value}.usersync.redirect.support-cors": CORS_SUPPORT as String]
+            "adapters.${ACEEX.value}.usersync.redirect.url"         : "https://test.redirect.endpoint.com={redirect_url}"]
     private static final Map<String, String> RUBICON_CONFIG = [
             "adapters.${RUBICON.value}.enabled"                       : "true",
             "adapters.${RUBICON.value}.meta-info.vendor-id"           : RUBICON_VENDOR_ID as String,
             "adapters.${RUBICON.value}.usersync.cookie-family-name"   : RUBICON.value,
             "adapters.${RUBICON.value}.usersync.redirect.url"         : "https://test.redirect.endpoint.com",
-            "adapters.${RUBICON.value}.usersync.redirect.support-cors": CORS_SUPPORT as String,
-            "adapters.${RUBICON.value}.usersync.iframe.url"           : "https://test.iframe.endpoint.com&redir={redirect_url}",
-            "adapters.${RUBICON.value}.usersync.iframe.support-cors"  : CORS_SUPPORT as String]
+            "adapters.${RUBICON.value}.usersync.iframe.url"           : "https://test.iframe.endpoint.com&redir={redirect_url}"]
     private static final Map<String, String> OPENX_CONFIG = [
             "adapters.${OPENX.value}.enabled"                       : "true",
             "adapters.${OPENX.value}.usersync.cookie-family-name"   : OPENX.value,
             "adapters.${OPENX.value}.usersync.redirect.url"         : USER_SYNC_URL,
-            "adapters.${OPENX.value}.usersync.redirect.support-cors": CORS_SUPPORT as String,
-            "adapters.${OPENX.value}.usersync.iframe.url"           : USER_SYNC_URL,
-            "adapters.${OPENX.value}.usersync.iframe.support-cors"  : CORS_SUPPORT as String]
+            "adapters.${OPENX.value}.usersync.iframe.url"           : USER_SYNC_URL]
     private static final Map<String, String> APPNEXUS_CONFIG = [
             "adapters.${APPNEXUS.value}.enabled"                       : "true",
             "adapters.${APPNEXUS.value}.aliases.mediafuse.enabled"     : "false",
             "adapters.${APPNEXUS.value}.usersync.cookie-family-name"   : APPNEXUS.value,
-            "adapters.${APPNEXUS.value}.usersync.redirect.url"         : "https://test.appnexus.redirect.com/getuid?{redirect_url}",
-            "adapters.${APPNEXUS.value}.usersync.redirect.support-cors": CORS_SUPPORT as String]
+            "adapters.${APPNEXUS.value}.usersync.redirect.url"         : "https://test.appnexus.redirect.com/getuid?{redirect_url}"]
     private static final Map<String, String> AAX_CONFIG = ["adapters.${AAX.value}.enabled": "true"]
     private static final Map<String, String> ACUITYADS_CONFIG = ["adapters.${ACUITYADS.value}.enabled": "true"]
     private static final Map<String, String> ADKERNEL_CONFIG = [
@@ -356,7 +348,6 @@ class CookieSyncSpec extends BaseSpec {
         verifyAll(bidderStatus?.userSync) {
             it.url == USER_SYNC_URL
             it.type == REDIRECT
-            it.supportCORS == false
         }
     }
 
@@ -551,7 +542,6 @@ class CookieSyncSpec extends BaseSpec {
         def bidderStatus = response.getBidderUserSync(GENERIC)
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
         assert bidderStatus?.noCookie == true
     }
 
@@ -592,7 +582,6 @@ class CookieSyncSpec extends BaseSpec {
         def bidderStatus = response.getBidderUserSync(GENERIC)
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
         assert bidderStatus?.noCookie == true
     }
 
@@ -643,7 +632,6 @@ class CookieSyncSpec extends BaseSpec {
         def configuredBidderStatus = response.getBidderUserSync(GENERIC)
         assert configuredBidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert configuredBidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert configuredBidderStatus?.userSync?.supportCORS == CORS_SUPPORT
         assert configuredBidderStatus?.noCookie == true
     }
 
@@ -725,7 +713,6 @@ class CookieSyncSpec extends BaseSpec {
         verifyAll(validBidderUserSyncs) {
             it.url == [USER_SYNC_URL]
             it.type == [USER_SYNC_TYPE]
-            it.supportCORS == [CORS_SUPPORT]
         }
 
         and: "Response should contain duplicate bidder error"
@@ -753,7 +740,6 @@ class CookieSyncSpec extends BaseSpec {
         response.bidderStatus.each {
             assert it.userSync?.url?.startsWith(USER_SYNC_URL)
             assert it.userSync?.type == USER_SYNC_TYPE
-            assert it.userSync?.supportCORS == CORS_SUPPORT
             assert it.noCookie == true
         }
     }
@@ -1681,7 +1667,6 @@ class CookieSyncSpec extends BaseSpec {
         def bidderStatus = response?.bidderStatus?.userSync
         assert bidderStatus?.url
         assert bidderStatus?.type
-        assert bidderStatus?.supportCORS?.every(it -> it == CORS_SUPPORT)
     }
 
     def "PBS cookie sync request shouldn't return sync url when active uids cookie is present for bidder"() {
diff --git a/src/test/groovy/org/prebid/server/functional/tests/HttpSettingsSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/HttpSettingsSpec.groovy
index b1ee2b8ef57..682bb2fef8b 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/HttpSettingsSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/HttpSettingsSpec.groovy
@@ -194,7 +194,6 @@ class HttpSettingsSpec extends BaseSpec {
         given: "Pbs config with adapters.generic.usersync.redirect.*"
         def pbsConfig = PbsConfig.httpSettingsConfig +
                 ["adapters.generic.usersync.redirect.url"            : "$networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString(),
-                 "adapters.generic.usersync.redirect.support-cors"   : "false",
                  "adapters.generic.usersync.redirect.format-override": "blank"]
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
@@ -230,7 +229,6 @@ class HttpSettingsSpec extends BaseSpec {
                 ['settings.http.endpoint': "${networkServiceContainer.rootUri}${HttpSettings.rfcEndpoint}".toString(),
                  'settings.http.rfc3986-compatible': 'true',
                  'adapters.generic.usersync.redirect.url'            : "$networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString(),
-                 'adapters.generic.usersync.redirect.support-cors'   : 'false',
                  'adapters.generic.usersync.redirect.format-override': 'blank']
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
diff --git a/src/test/groovy/org/prebid/server/functional/tests/SetUidSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/SetUidSpec.groovy
index 27b69e74341..65a1a8650fc 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/SetUidSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/SetUidSpec.groovy
@@ -38,7 +38,6 @@ class SetUidSpec extends BaseSpec {
     private static final Integer MAX_NUMBER_OF_UID_COOKIES = 30
     private static final Integer UPDATED_EXPIRE_DAYS = 14
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
-    private static final boolean CORS_SUPPORT = false
     private static final Integer RANDOM_EXPIRE_DAY = PBSUtils.getRandomNumber(1, 10)
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
     private static final String GENERIC_COOKIE_FAMILY_NAME = GENERIC.value
@@ -63,14 +62,12 @@ class SetUidSpec extends BaseSpec {
              "adapters.${GENERIC.value}.meta-info.vendor-id"                                           : VENDOR_ID,
              "adapters.${GENERIC.value}.usersync.cookie-family-name"                                   : GENERIC_COOKIE_FAMILY_NAME,
              "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"                          : USER_SYNC_URL,
-             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors"                 : CORS_SUPPORT.toString(),
              "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.uid-macro"                    : "",
 
              "adapters.${GRID.value}.enabled"                                                          : "true",
              "adapters.${GRID.value}.meta-info.vendor-id"                                              : VENDOR_ID,
              "adapters.${GRID.value}.usersync.cookie-family-name"                                      : GENERIC_COOKIE_FAMILY_NAME,
              "adapters.${GRID.value}.usersync.${USER_SYNC_TYPE.value}.url"                             : USER_SYNC_URL,
-             "adapters.${GRID.value}.usersync.${USER_SYNC_TYPE.value}.support-cors"                    : CORS_SUPPORT.toString(),
              "adapters.${GRID.value}.usersync.${USER_SYNC_TYPE.value}.uid-macro"                       : "",
 
              "adapters.${GENERIC}.aliases.${ALIAS}.enabled"                                            : "true",
@@ -78,7 +75,6 @@ class SetUidSpec extends BaseSpec {
              "adapters.${GENERIC}.aliases.${ALIAS}.meta-info.vendor-id"                                : VENDOR_ID,
              "adapters.${GENERIC}.aliases.${ALIAS}.usersync.cookie-family-name"                        : GENERIC_COOKIE_FAMILY_NAME,
              "adapters.${GENERIC}.aliases.${ALIAS}.usersync.${USER_SYNC_TYPE.value}.url"               : USER_SYNC_URL,
-             "adapters.${GENERIC}.aliases.${ALIAS}.usersync.${USER_SYNC_TYPE.value}.support-cors"      : CORS_SUPPORT.toString(),
              "adapters.${GENERIC}.aliases.${ALIAS}.usersync.${USER_SYNC_TYPE.value}.uid-macro"         : "",
 
              "adapters.${GENERIC}.aliases.${OPENX_ALIAS}.enabled"                                      : "true",
@@ -86,7 +82,6 @@ class SetUidSpec extends BaseSpec {
              "adapters.${GENERIC}.aliases.${OPENX_ALIAS}.meta-info.vendor-id"                          : VENDOR_ID,
              "adapters.${GENERIC}.aliases.${OPENX_ALIAS}.usersync.cookie-family-name"                  : GENERIC_COOKIE_FAMILY_NAME,
              "adapters.${GENERIC}.aliases.${OPENX_ALIAS}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-             "adapters.${GENERIC}.aliases.${OPENX_ALIAS}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString(),
              "adapters.${GENERIC}.aliases.${OPENX_ALIAS}.usersync.${USER_SYNC_TYPE.value}.uid-macro"   : ""]
 
     @Shared
diff --git a/src/test/groovy/org/prebid/server/functional/tests/UserSyncSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/UserSyncSpec.groovy
index e2ddc563616..fea96bea8f0 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/UserSyncSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/UserSyncSpec.groovy
@@ -12,14 +12,12 @@ import static org.prebid.server.functional.testcontainers.Dependencies.networkSe
 
 class UserSyncSpec extends BaseSpec {
 
-    private static final Map<String, String> GENERIC_USERSYNC_CONFIG = ["adapters.${GENERIC.value}.usersync.${IFRAME.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString(),
-                                                                        "adapters.${GENERIC.value}.usersync.${IFRAME.value}.support-cors": "false"]
+    private static final Map<String, String> GENERIC_USERSYNC_CONFIG = ["adapters.${GENERIC.value}.usersync.${IFRAME.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString()]
 
     def "PBS should return usersync url with '#formatParam' format parameter for #userSyncFormat when format-override absent"() {
         given: "Pbs config with usersync.#userSyncFormat"
         def prebidServerService = pbsServiceFactory.getService(
-                ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString(),
-                 "adapters.generic.usersync.${userSyncFormat.value}.support-cors": "false"])
+                ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString()])
 
         and: "Default CookieSyncRequest"
         def cookieSyncRequest = CookieSyncRequest.defaultCookieSyncRequest
@@ -42,7 +40,6 @@ class UserSyncSpec extends BaseSpec {
         given: "Pbs config with usersync.#userSyncFormat and iframe.format-override: #formatOverride"
         def prebidServerService = pbsServiceFactory.getService(
                 ["adapters.generic.usersync.${userSyncFormat.value}.url"            : "$networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString(),
-                 "adapters.generic.usersync.${userSyncFormat.value}.support-cors"   : "false",
                  "adapters.generic.usersync.${userSyncFormat.value}.format-override": formatOverride.value])
 
         and: "Default CookieSyncRequest"
@@ -68,7 +65,6 @@ class UserSyncSpec extends BaseSpec {
         given: "Pbs config with usersync.#userSyncFormat.url"
         def prebidServerService = pbsServiceFactory.getService(
                 ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString(),
-                 "adapters.generic.usersync.${userSyncFormat.value}.support-cors": "false",
                  "adapters.generic.usersync.${userSyncFormat.value}.uid-macro"   : null])
 
         and: "Default CookieSyncRequest"
diff --git a/src/test/groovy/org/prebid/server/functional/tests/module/pbruleengine/RuleEngineBaseSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/module/pbruleengine/RuleEngineBaseSpec.groovy
index bfc73c8de37..d77288da086 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/module/pbruleengine/RuleEngineBaseSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/module/pbruleengine/RuleEngineBaseSpec.groovy
@@ -89,7 +89,6 @@ abstract class RuleEngineBaseSpec extends ModuleBaseSpec {
     private static final String USER_SYNC_URL = "$networkServiceContainer.rootUri/generic-usersync"
     private static final Map<String, String> GENERIC_CONFIG = [
             "adapters.${GENERIC.value}.usersync.redirect.url"         : USER_SYNC_URL,
-            "adapters.${GENERIC.value}.usersync.redirect.support-cors": false as String,
             "adapters.${GENERIC.value}.meta-info.vendor-id"           : GENERIC_VENDOR_ID as String]
     protected static final PrebidServerService pbsServiceWithRulesEngineModule = pbsServiceFactory.getService(GENERIC_CONFIG +
             getRulesEngineSettings() + AMX_CONFIG + OPENX_CONFIG + OPENX_ALIAS_CONFIG + ['datacenter-region': CONFIG_DATA_CENTER] +
diff --git a/src/test/groovy/org/prebid/server/functional/tests/privacy/PrivacyBaseSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/privacy/PrivacyBaseSpec.groovy
index 55fd210806f..19f9798a9e8 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/privacy/PrivacyBaseSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/privacy/PrivacyBaseSpec.groovy
@@ -86,7 +86,6 @@ abstract class PrivacyBaseSpec extends BaseSpec {
     private static final int GEO_PRECISION = 2
 
     protected static final Map<String, String> GENERIC_CONFIG = ["adapters.${GENERIC.value}.usersync.${REDIRECT.value}.url"         : "$networkServiceContainer.rootUri/generic-usersync".toString(),
-                                                                 "adapters.${GENERIC.value}.usersync.${REDIRECT.value}.support-cors": false.toString(),
                                                                  "adapters.${GENERIC.value}.ortb-version"                           : "2.6"]
     private static final Map<String, String> OPENX_CONFIG = ["adaptrs.${OPENX.value}.enabled"                     : "true",
                                                              "adapters.${OPENX.value}.usersync.cookie-family-name": OPENX.value,
diff --git a/src/test/groovy/org/prebid/server/functional/tests/privacy/gdpr/GdprSetUidSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/privacy/gdpr/GdprSetUidSpec.groovy
index 65950dfdde1..21e67d65062 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/privacy/gdpr/GdprSetUidSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/privacy/gdpr/GdprSetUidSpec.groovy
@@ -30,13 +30,11 @@ import static org.prebid.server.functional.util.privacy.TcfConsent.PurposeId.DEV
 
 class GdprSetUidSpec extends PrivacyBaseSpec {
 
-    private static final boolean CORS_SUPPORT = false
     private static final String USER_SYNC_URL = "$Dependencies.networkServiceContainer.rootUri/generic-usersync"
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
     private static final Map<String, String> VENDOR_GENERIC_PBS_CONFIG = GENERIC_VENDOR_CONFIG +
             ["gdpr.purposes.p1.enforce-purpose"                                       : NO.value,
-             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL]
     private static final String TCF_ERROR_MESSAGE = "The gdpr_consent param prevents cookies from being saved"
     private static final int UNAVAILABLE_FOR_LEGAL_REASONS_CODE = 451
 
diff --git a/src/test/groovy/org/prebid/server/functional/tests/privacy/gpp/GppCookieSyncSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/privacy/gpp/GppCookieSyncSpec.groovy
index 284ea4670ba..46369e28503 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/privacy/gpp/GppCookieSyncSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/privacy/gpp/GppCookieSyncSpec.groovy
@@ -36,21 +36,18 @@ import static org.prebid.server.functional.util.privacy.TcfConsent.PurposeId.DEV
 class GppCookieSyncSpec extends BaseSpec {
 
     private static final UserSyncInfo.Type USER_SYNC_TYPE = REDIRECT
-    private static final boolean CORS_SUPPORT = false
     private static final String USER_SYNC_URL = "$Dependencies.networkServiceContainer.rootUri/generic-usersync"
     private static final GppSectionId FIRST_GPP_SECTION = PBSUtils.getRandomEnum(GppSectionId.class)
     private static final GppSectionId SECOND_GPP_SECTION = PBSUtils.getRandomEnum(GppSectionId.class, [FIRST_GPP_SECTION])
 
     private static final Map<String, String> GENERIC_CONFIG = [
             "adapters.${GENERIC.value}.meta-info.vendor-id"                          : GENERIC_VENDOR_ID as String,
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL]
     private static final Map<String, String> GENERIC_WITH_SKIP_CONFIG = [
             "adapters.${GENERIC.value}.meta-info.vendor-id"                          : GENERIC_VENDOR_ID as String,
             "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : "$Dependencies.networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString(),
             "adapters.${GENERIC.value}.usersync.skipwhen.gdpr"                       : 'true',
-            "adapters.${GENERIC.value}.usersync.skipwhen.gpp_sid"                    : "${FIRST_GPP_SECTION.value}, ${SECOND_GPP_SECTION.value}".toString(),
-            "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+            "adapters.${GENERIC.value}.usersync.skipwhen.gpp_sid"                    : "${FIRST_GPP_SECTION.value}, ${SECOND_GPP_SECTION.value}".toString()]
 
     private static PrebidServerService prebidServerService = pbsServiceFactory.getService(GENERIC_CONFIG)
     private static PrebidServerService prebidServerServiceWithSkipConfig = pbsServiceFactory.getService(GENERIC_WITH_SKIP_CONFIG + GENERIC_ALIAS_CONFIG)
@@ -100,7 +97,6 @@ class GppCookieSyncSpec extends BaseSpec {
         assert bidderStatus?.noCookie == true
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
     }
 
     def "PBS cookie sync request should respond with a warning when gpp_sid contains 2 and gdpr is 0"() {
@@ -123,7 +119,6 @@ class GppCookieSyncSpec extends BaseSpec {
         assert bidderStatus?.noCookie == true
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
     }
 
     def "PBS cookie sync request should respond with a warning when gpp_sid doesn't contain 2 and gdpr is 1"() {
@@ -168,7 +163,6 @@ class GppCookieSyncSpec extends BaseSpec {
         assert bidderStatus?.noCookie == true
         assert bidderStatus?.userSync?.url?.startsWith(USER_SYNC_URL)
         assert bidderStatus?.userSync?.type == USER_SYNC_TYPE
-        assert bidderStatus?.userSync?.supportCORS == CORS_SUPPORT
     }
 
     def "PBS cookie sync request should respond with an error when gpp_sid is invalid"() {
@@ -233,8 +227,7 @@ class GppCookieSyncSpec extends BaseSpec {
 
     def "PBS should return empty gpp and gppSid in usersync url when gpp and gppSid is not present in request"() {
         given: "Pbs config with usersync.#userSyncFormat.url"
-        def pbsConfig = ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$Dependencies.networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString(),
-                         "adapters.generic.usersync.${userSyncFormat.value}.support-cors": "false"]
+        def pbsConfig = ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$Dependencies.networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString()]
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
         and: "Default CookieSyncRequest without gpp and gppSid"
@@ -260,8 +253,7 @@ class GppCookieSyncSpec extends BaseSpec {
 
     def "PBS should populate gpp and gppSid in usersync url when gpp and gppSid is present in request"() {
         given: "Pbs config with usersync.#userSyncFormat.url"
-        def pbsConfig = ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$Dependencies.networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString(),
-                         "adapters.generic.usersync.${userSyncFormat.value}.support-cors": "false"]
+        def pbsConfig = ["adapters.generic.usersync.${userSyncFormat.value}.url"         : "$Dependencies.networkServiceContainer.rootUri/generic-usersync&redir={redirect_url}".toString()]
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
         and: "Default CookieSyncRequest with gpp and gppSid"
@@ -415,8 +407,7 @@ class GppCookieSyncSpec extends BaseSpec {
         def pbsConfig = [
                 "adapters.${GENERIC.value}.meta-info.vendor-id"                          : GENERIC_VENDOR_ID as String,
                 "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.url"         : USER_SYNC_URL,
-                "adapters.${GENERIC.value}.usersync.skipwhen.gdpr"                       : 'false',
-                "adapters.${GENERIC.value}.usersync.${USER_SYNC_TYPE.value}.support-cors": CORS_SUPPORT.toString()]
+                "adapters.${GENERIC.value}.usersync.skipwhen.gdpr"                       : 'false']
         def prebidServerService = pbsServiceFactory.getService(pbsConfig)
 
         and: "Default CookieSyncRequest with gdpr config"
diff --git a/src/test/java/org/prebid/server/bidder/UsersyncInfoFactoryTest.java b/src/test/java/org/prebid/server/bidder/UsersyncInfoFactoryTest.java
index 446c8db449a..a8de186bb19 100644
--- a/src/test/java/org/prebid/server/bidder/UsersyncInfoFactoryTest.java
+++ b/src/test/java/org/prebid/server/bidder/UsersyncInfoFactoryTest.java
@@ -285,18 +285,6 @@ public void buildShouldReturnTypeFromUsersyncMethod() {
         assertThat(result.getType()).isEqualTo(UsersyncMethodType.IFRAME);
     }
 
-    @Test
-    public void buildShouldReturnIsSupportCORSFromUsersyncMethod() {
-        // given
-        final UsersyncMethod method = givenUsersyncMethod(builder -> builder.supportCORS(true));
-
-        // when
-        final UsersyncInfo result = target.build(BIDDER, null, method, givenEmptyPrivacy());
-
-        // then
-        assertThat(result.getSupportCORS()).isTrue();
-    }
-
     @Test
     public void buildShouldUseFormatOverrideOverTypeFormat() {
         // given
@@ -338,7 +326,6 @@ public void buildShouldReturnCorrectFullUrlIfHostCookieUidIsNull() {
                         &gpp={gpp}\
                         &gpp_sid={gpp_sid}"""))
                 .uidMacro("$UID-MACRO")
-                .supportCORS(true)
                 .formatOverride(UsersyncFormat.PIXEL)
                 .build();
         final Privacy privacy = Privacy.builder()
@@ -353,7 +340,6 @@ public void buildShouldReturnCorrectFullUrlIfHostCookieUidIsNull() {
         final UsersyncInfo result = target.build("sync-bidder test", null, method, privacy);
 
         // then
-        assertThat(result.getSupportCORS()).isTrue();
         assertThat(result.getType()).isEqualTo(UsersyncMethodType.IFRAME);
         assertThat(result.getUrl()).isEqualTo("""
                 https://usersync-url\
@@ -381,7 +367,6 @@ public void buildShouldReturnCorrectFullUrlIfHostCookieUidIsNotNull() {
                 .type(UsersyncMethodType.IFRAME)
                 .usersyncUrl(Uri.of("https://ignored.example/should-not-appear"))
                 .uidMacro("$IGNORED")
-                .supportCORS(true)
                 .formatOverride(UsersyncFormat.PIXEL)
                 .build();
         final Privacy privacy = Privacy.builder()
@@ -396,7 +381,6 @@ public void buildShouldReturnCorrectFullUrlIfHostCookieUidIsNotNull() {
         final UsersyncInfo result = target.build("sync-bidder test", "host-uid value", method, privacy);
 
         // then
-        assertThat(result.getSupportCORS()).isTrue();
         assertThat(result.getType()).isEqualTo(UsersyncMethodType.IFRAME);
         assertThat(result.getUrl()).isEqualTo("""
                 https://localhost:8080/setuid?\
diff --git a/src/test/java/org/prebid/server/bidder/UsersyncMethodChooserTest.java b/src/test/java/org/prebid/server/bidder/UsersyncMethodChooserTest.java
index 1f16493d6ba..715048f944a 100644
--- a/src/test/java/org/prebid/server/bidder/UsersyncMethodChooserTest.java
+++ b/src/test/java/org/prebid/server/bidder/UsersyncMethodChooserTest.java
@@ -365,7 +365,6 @@ private UsersyncMethod iframeMethod(String url) {
         return UsersyncMethod.builder()
                 .type(UsersyncMethodType.IFRAME)
                 .usersyncUrl(Uri.of(url))
-                .supportCORS(false)
                 .build();
     }
 
@@ -373,7 +372,6 @@ private UsersyncMethod redirectMethod(String url) {
         return UsersyncMethod.builder()
                 .type(UsersyncMethodType.REDIRECT)
                 .usersyncUrl(Uri.of(url))
-                .supportCORS(false)
                 .build();
     }
 }
diff --git a/src/test/java/org/prebid/server/handler/SetuidHandlerTest.java b/src/test/java/org/prebid/server/handler/SetuidHandlerTest.java
index 057d1e9e110..815453e85ea 100644
--- a/src/test/java/org/prebid/server/handler/SetuidHandlerTest.java
+++ b/src/test/java/org/prebid/server/handler/SetuidHandlerTest.java
@@ -980,10 +980,10 @@ private static UidsCookie emptyUidsCookie() {
     }
 
     private static UsersyncMethod iframeMethod() {
-        return UsersyncMethod.builder().type(UsersyncMethodType.IFRAME).supportCORS(false).build();
+        return UsersyncMethod.builder().type(UsersyncMethodType.IFRAME).build();
     }
 
     private static UsersyncMethod redirectMethod() {
-        return UsersyncMethod.builder().type(UsersyncMethodType.REDIRECT).supportCORS(false).build();
+        return UsersyncMethod.builder().type(UsersyncMethodType.REDIRECT).build();
     }
 }
diff --git a/src/test/java/org/prebid/server/it/ApplicationTest.java b/src/test/java/org/prebid/server/it/ApplicationTest.java
index 0c937b928b8..73851e69703 100644
--- a/src/test/java/org/prebid/server/it/ApplicationTest.java
+++ b/src/test/java/org/prebid/server/it/ApplicationTest.java
@@ -324,7 +324,7 @@ public void cookieSyncShouldReturnBidderStatusWithExpectedUsersyncInfo() {
                                         + "&gpp_sid="
                                         + "&f=i"
                                         + "&uid=host-cookie-uid",
-                                UsersyncMethodType.REDIRECT, false))
+                                UsersyncMethodType.REDIRECT))
                         .build(),
                 BidderUsersyncStatus.builder()
                         .bidder(APPNEXUS)
@@ -337,7 +337,7 @@ public void cookieSyncShouldReturnBidderStatusWithExpectedUsersyncInfo() {
                                         + "%26gpp_sid%3D"
                                         + "%26f%3Di"
                                         + "%26uid%3D%24UID",
-                                UsersyncMethodType.REDIRECT, false))
+                                UsersyncMethodType.REDIRECT))
                         .build());
     }
 
diff --git a/src/test/java/org/prebid/server/spring/config/bidder/util/UsersyncerUtilTest.java b/src/test/java/org/prebid/server/spring/config/bidder/util/UsersyncerUtilTest.java
index 8eeeb3ce9b8..536128973f1 100644
--- a/src/test/java/org/prebid/server/spring/config/bidder/util/UsersyncerUtilTest.java
+++ b/src/test/java/org/prebid/server/spring/config/bidder/util/UsersyncerUtilTest.java
@@ -58,7 +58,6 @@ public void createShouldReturnUsersyncerWithCorrectUsersyncMethodParams() {
         final UsersyncMethodConfigurationProperties iframe = new UsersyncMethodConfigurationProperties();
         iframe.setUrl("https://iframe-url");
         iframe.setUidMacro("iframe-uid-macro");
-        iframe.setSupportCors(true);
         iframe.setFormatOverride(UsersyncFormat.BLANK);
 
         final UsersyncConfigurationProperties properties = givenUsersyncConfigurationProperties();
@@ -72,7 +71,6 @@ public void createShouldReturnUsersyncerWithCorrectUsersyncMethodParams() {
                 .type(UsersyncMethodType.IFRAME)
                 .usersyncUrl(Uri.of("https://iframe-url"))
                 .uidMacro("iframe-uid-macro")
-                .supportCORS(true)
                 .formatOverride(UsersyncFormat.BLANK)
                 .build());
     }
@@ -131,7 +129,6 @@ private static UsersyncConfigurationProperties givenUsersyncConfigurationPropert
     private static UsersyncMethodConfigurationProperties givenUsersyncMethodConfigurationProperties() {
         final UsersyncMethodConfigurationProperties properties = new UsersyncMethodConfigurationProperties();
         properties.setUrl("https://url");
-        properties.setSupportCors(false);
         return properties;
     }
 }
diff --git a/src/test/resources/org/prebid/server/it/test-application.properties b/src/test/resources/org/prebid/server/it/test-application.properties
index 42206cabbfe..9c31f54c410 100644
--- a/src/test/resources/org/prebid/server/it/test-application.properties
+++ b/src/test/resources/org/prebid/server/it/test-application.properties
@@ -134,7 +134,6 @@ adapters.appnexus.enabled=true
 adapters.appnexus.endpoint=http://localhost:8090/appnexus-exchange
 adapters.appnexus.usersync.redirect.url=http://usersync-url/getuid?{redirect_url}
 adapters.appnexus.usersync.redirect.uid-macro=$UID
-adapters.appnexus.usersync.redirect.support-cors=false
 adapters.appnexus.aliases.mediafuse.enabled=true
 adapters.appnexus.aliases.mediafuse.endpoint=http://localhost:8090/mediafuse-exchange
 adapters.appush.enabled=true
@@ -411,7 +410,6 @@ adapters.msft.enabled=true
 adapters.msft.endpoint=http://localhost:8090/msft-exchange
 adapters.msft.usersync.redirect.url=http://usersync-url/getuid?{redirect_url}
 adapters.msft.usersync.redirect.uid-macro=$UID
-adapters.msft.usersync.redirect.support-cors=false
 adapters.nativery.enabled=true
 adapters.nativery.endpoint=http://localhost:8090/nativery-exchange
 adapters.nativo.enabled=true
@@ -500,7 +498,6 @@ adapters.rubicon.XAPI.Username=rubicon_user
 adapters.rubicon.XAPI.Password=rubicon_password
 adapters.rubicon.usersync.redirect.url=http://localhost:8090/rubicon-usersync?gdpr={gdpr}&gdpr_consent={gdpr_consent}
 adapters.rubicon.usersync.redirect.uid-macro=rubicon-macro
-adapters.rubicon.usersync.redirect.support-cors=false
 adapters.salunamedia.enabled=true
 adapters.salunamedia.endpoint=http://localhost:8090/salunamedia-exchange
 adapters.screencore.enabled=true