net/http: keep sensitive headers on redirects to the same host
Preserve sensitive headers on a redirect to a different port of the same host.
Fixes #35104
Change-Id: I5ab57c414ce92a70e688ee684b9ff02fb062b3c6
GitHub-Last-Rev:
8d53e71e2243c141d70d27a503d0f7e6dee64c3c
GitHub-Pull-Request: golang/go#54539
Reviewed-on: https://go-review.googlesource.com/c/go/+/424935
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>