[release-branch.go1.13] net/http: don't cache http2.erringRoundTripper connections
Fixes #35087
Updates #34978
Change-Id: I3baf1392ba7366ae6628889c47c343ef702ec438
Reviewed-on: https://go-review.googlesource.com/c/go/+/202078
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
(cherry picked from commit
88186e5e232625f9c91d639e0cb90a88c6cf1172)
Reviewed-on: https://go-review.googlesource.com/c/go/+/202642
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>