This is a flakey failure on both BigSur WK1/Wk2 Debug and Catalina Wk1/Wk2 Debug
@@ -1,6 +1,6 @@
CONSOLE MESSAGE: Refused to load https://localhost:8443/security/contentSecurityPolicy/resources/alert-fail.html because it does not appear in the frame-src directive of the Content Security Policy.
+CONSOLE MESSAGE: PASS
-CONSOLE MESSAGE: PASS
IFrames blocked by CSP should generate a 'load' event, regardless of blocked state. This means they appear to be normal cross-origin loads, thereby not leaking URL information directly to JS.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
Updated test expectations: