Uplift HTTPS First Mode v2 Migration (#17856) and HTTP error code fallback (#18141)#18179

Merged

kjozwiak merged 2 commits into1.51.xfrom issues/29914

Apr 28, 2023

+251-217

Commits on Apr 27, 2023

Migrate to HttpsFirstMode v2 (#17856 )
arthuredelstein
committed
Force HTTPS Upgrader to fall back to HTTP if we have an HTTP error code (#18141 )
arthuredelstein
committed