When we receive an initial load request with a HTTP URL, we should fail instead of upgrading.
<rdar://problem/113989408>
Pull request: https://github.com/WebKit/WebKit/pull/16757
Committed 267156@main (d933b28b5045): <https://commits.webkit.org/267156@main> Reviewed commits have been landed. Closing PR #16757 and removing active labels.