As per spec, NetworkLoadChecker should not check CORS for 304 responses if the WebProcess is asking for revalidation. Instead, the WebProcess should do it
<rdar://problem/40941725>
Created attachment 343362 [details] Patch
Submitted web-platform-tests pull request: https://github.com/web-platform-tests/wpt/pull/11663
Comment on attachment 343362 [details] Patch Clearing flags on attachment: 343362 Committed r233172: <https://trac.webkit.org/changeset/233172>
All reviewed patches have been landed. Closing bug.