Import WPT preload tests (that pass).
Created attachment 366389 [details] Patch
Comment on attachment 366389 [details] Patch Let me know if this patch should also remove equivalent tests from http/tests/preload.
Comment on attachment 366389 [details] Patch Clearing flags on attachment: 366389 Committed r244216: <https://trac.webkit.org/changeset/244216>
All reviewed patches have been landed. Closing bug.
<rdar://problem/49852458>