See https://github.com/w3c/web-platform-tests/pull/7604 for tests. fetch() and Request should really not pass the document encoding on toward the URL parser.
Created attachment 387794 [details] Patch
Created attachment 387815 [details] Patch
The commit-queue encountered the following flaky tests while processing attachment 387815 [details]: imported/w3c/web-platform-tests/xhr/send-send.any.worker.html bug 206345 (author: youennf@gmail.com) The commit-queue is continuing to process your patch.
The commit-queue encountered the following flaky tests while processing attachment 387815 [details]: editing/spelling/spellcheck-attribute.html bug 206178 (authors: g.czajkowski@samsung.com, mark.lam@apple.com, and rniwa@webkit.org) The commit-queue is continuing to process your patch.
Comment on attachment 387815 [details] Patch Clearing flags on attachment: 387815 Committed r254672: <https://trac.webkit.org/changeset/254672>
All reviewed patches have been landed. Closing bug.
<rdar://problem/58640439>