commit 71698e610121078e0d1a811054dcf9fd89b49578
author Frédéric Wang <fwang@igalia.com> Thu Dec 10 06:13:52 2020
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> Thu Dec 10 06:13:52 2020
tree b6b19adb5d81e2119254d7941379b7ad2e811282
parent 3afa598a45209d675e06d61a38eccbaeefc6a0f2

Remove special handling of localhost6 and localhost6.localdomain6

This CL removes host names and "localhost6" and
"localhost6.localdomain6" from the list of known IPv6-only localhost.
This means they will be resolved using the native DNS resolver rather
than Chrome's internal one and that they won't be treated as
"potentially trustworthy" origins [1] [2]. This aligns with the behavior
of WebKit and Firefox, is expected to have low backward compatibility
risk and one can configure things to preserve existing support [3] [4].

[1] https://tools.ietf.org/html/draft-west-let-localhost-be-localhost-06
[2] https://w3c.github.io/webappsec-secure-contexts/#is-origin-trustworthy
[3] https://chromestatus.com/feature/5698580851458048
[4] https://groups.google.com/a/chromium.org/g/blink-dev/c/bmdcI_q2yWQ

Bug: 1153337
Change-Id: I344e4aebe4caebc30c70f8dcda1ce87ee0937bda
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2570568
Reviewed-by: Mike West <mkwst@chromium.org>
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Frédéric Wang <fwang@igalia.com>
Cr-Commit-Position: refs/heads/master@{#835563}