When a <head> start tag is parsed while in the "in head noscript" state (i.e., the parser has the "scripting flag" set to false, and we're inside the <head>), then the tag should be ignored. But there's a typo, which results in us implying a closing </noscript> tag.
Pull request: https://github.com/WebKit/WebKit/pull/3347
Committed 253489@main (174fe130c083): <https://commits.webkit.org/253489@main> Reviewed commits have been landed. Closing PR #3347 and removing active labels.
<rdar://problem/98751308>
Test upstreamed: https://github.com/WebKit/WebKit/pull/3347