Re-sync web-platform-tests/fetch/api/policies from upstream mainly because of:
Created attachment 388404 [details]
Created attachment 388407 [details]
Created attachment 388408 [details]
Created attachment 388410 [details]
The commit-queue encountered the following flaky tests while processing attachment 388410 [details]:
editing/spelling/spellcheck-attribute.html bug 206178 (authors: email@example.com, firstname.lastname@example.org, and email@example.com)
The commit-queue is continuing to process your patch.
Comment on attachment 388410 [details]
Clearing flags on attachment: 388410
Committed r255138: <https://trac.webkit.org/changeset/255138>
All reviewed patches have been landed. Closing bug.