tree 1945a956620ead9dd5d079601239cbbf5e5a4d3e
parent 42b41e29afe56143937400536335f0107c3f3fd6
author Russ Cox <rsc@golang.org> 1628802408 -0400
committer Russ Cox <rsc@golang.org> 1628882483 +0000

cmd/golangorg: serve m.golang.org redirect

When we set up Gmail for golang.org a decade ago,
we also configured Gmail to serve m.golang.org as a shortcut
to redirect to the full Gmail URL for golang.org.
It still does, but only if you connect to http://m.golang.org/.

CL 122175 broke the m.golang.org redirect back in summer 2018
by setting an HSTS Strict-Transport-Security header with includeSubdomains,
so that visiting golang.org stops the browser from being willing to
visit http://m.golang.org/. It goes straight to https, which fails.

I have been annoyed for years that this was broken, but I wasn't sure
when it started and never took the time to track down what was wrong.

This CL fixes m.golang.org by serving the redirect ourselves.

Change-Id: I290bb2fe7fc7a415d00162776ecc54527e431c61
Reviewed-on: https://go-review.googlesource.com/c/website/+/341710
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Website-Publish: Russ Cox <rsc@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>