diff --git a/LayoutTests/imported/w3c/ChangeLog b/LayoutTests/imported/w3c/ChangeLog
index 09144e3..45d56d9 100644
--- a/LayoutTests/imported/w3c/ChangeLog
+++ b/LayoutTests/imported/w3c/ChangeLog
@@ -1,3 +1,13 @@
+2020-06-29  Chris Dumez  <cdumez@apple.com>
+
+        REGRESSION(r263626): 2 imported/w3c/web-platform-tests/cors/ tests failing constantly
+        https://bugs.webkit.org/show_bug.cgi?id=213729
+
+        Unreviewed, rebaseline a couple of cors tests after upstream resync in r263626.
+
+        * web-platform-tests/cors/credentials-flag-expected.txt:
+        * web-platform-tests/cors/origin-expected.txt:
+
 2020-06-09  Sergio Villar Senin  <svillar@igalia.com>
 
         [css-flexbox] WebKit mistakenly lets pointer events (click/hover/etc) pass through flex items, if they have negative margin
diff --git a/LayoutTests/imported/w3c/web-platform-tests/cors/credentials-flag-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/cors/credentials-flag-expected.txt
index 967ed9e..999da96 100644
--- a/LayoutTests/imported/w3c/web-platform-tests/cors/credentials-flag-expected.txt
+++ b/LayoutTests/imported/w3c/web-platform-tests/cors/credentials-flag-expected.txt
@@ -14,6 +14,6 @@
 PASS Access-Control-Allow-Credentials: 0 should be disallowed (async) 
 PASS Access-Control-Allow-Credentials: ,true should be disallowed (async) 
 PASS Access-Control-Allow-Credentials: true, should be disallowed (async) 
-FAIL Access-Control-Allow-Credentials: true%0B should be disallowed (async) assert_unreached: onload Reached unreachable code
-FAIL Access-Control-Allow-Credentials: true%0C should be disallowed (async) assert_unreached: onload Reached unreachable code
+PASS Access-Control-Allow-Credentials: true%0B should be disallowed (async) 
+PASS Access-Control-Allow-Credentials: true%0C should be disallowed (async) 
 
diff --git a/LayoutTests/imported/w3c/web-platform-tests/cors/origin-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/cors/origin-expected.txt
index b3bd125..74e8f64 100644
--- a/LayoutTests/imported/w3c/web-platform-tests/cors/origin-expected.txt
+++ b/LayoutTests/imported/w3c/web-platform-tests/cors/origin-expected.txt
@@ -33,11 +33,11 @@
 PASS Disallow origin: ,* 
 PASS Disallow origin: *, 
 PASS Disallow origin: \0* 
-FAIL Disallow origin: * assert_throws_dom: send function "function () { client.send() }" did not throw
-FAIL Disallow origin: * assert_throws_dom: send function "function () { client.send() }" did not throw
+PASS Disallow origin: * 
+PASS Disallow origin: * 
 PASS Disallow origin: *\0 
-FAIL Disallow origin: * assert_throws_dom: send function "function () { client.send() }" did not throw
-FAIL Disallow origin: * assert_throws_dom: send function "function () { client.send() }" did not throw
+PASS Disallow origin: * 
+PASS Disallow origin: * 
 PASS Disallow origin: '*' 
 PASS Disallow origin: "*" 
 PASS Disallow origin: * *