The new SharedWorker implementation lacks support for Upgrade-Insecure-Request, causing some WPT failures.
<rdar://problem/98216606>
Pull request: https://github.com/WebKit/WebKit/pull/3064
Committed 253167@main (885184bd06a4): <https://commits.webkit.org/253167@main> Reviewed commits have been landed. Closing PR #3064 and removing active labels.