In most cases, JS hard-codes MIME type at its call site so it would benefit from fast string comparison.
Pull request: https://github.com/WebKit/WebKit/pull/23022
Committed 273272@main (90c9323b6933): <https://commits.webkit.org/273272@main> Reviewed commits have been landed. Closing PR #23022 and removing active labels.
<rdar://problem/121331460>