WebKit export of https://bugs.webkit.org/show_bug.cgi?id=267695

[lukewarlow]

WebKit doesn't support JavaScript URLs containing <script> tags so this test fails within WebKit regardless of what it should actually be testing. I'm unaware why the test uses this odd construction in the first place.

[wpt-pr-bot]

This patch has been exported from WebKit; it will be approved automatically once the downstream patch is r+.