tree d8cd082f02e1e7d0d8dea4aaa31fb171be3d7f31
parent b32b9ce48b02504885d5d800460c891360e44463
author Andrew Bonventre <andybons@golang.org> 1589395455 -0400
committer Andrew Bonventre <andybons@golang.org> 1591285840 +0000

gddo-server: account for vendor dirs in pkg.go.dev redirect

Pkg.go.dev does not support documentation for vendor directories.
When showing the corresponding pkg.go.dev link in the header or
when automatically redirecting, change the destination to be the
pkg.go.dev homepage instead of a vendor link that will 404.

Fixes golang/go#38671

Change-Id: Ic7d221d3cc7fef352f5c7097a667fb8dd2ad0340
Reviewed-on: https://go-review.googlesource.com/c/gddo/+/233839
Run-TryBot: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Julie Qiu <julie@golang.org>