We handle HSTS upgrades as a redirection to let Web and UI processes know about the URL change, but in case of redirection, the new request is originated in the network process, so we can just update the URL.
Pull request: https://github.com/WebKit/WebKit/pull/12566
Committed 262817@main (cebc10654f3c): <https://commits.webkit.org/262817@main> Reviewed commits have been landed. Closing PR #12566 and removing active labels.