FYI: DNS-over-HTTPS (DoH) support coming soon to Linux

[Eric Orth]

FYI/PSA-only. Does not directly affect web API behavior.

Contact emails

eric...@chromium.org, net...@chromium.org

Design doc

https://docs.google.com/document/d/1zAdSK393IznaLKQ0ItOmwLBy59fIq9ydxBRJQX-2ntQ

Summary

Extend DNS-over-HTTPS (DoH) support to Chrome on Linux.  Previously supported (since 2020) on other desktop platforms and Android.  Requires some new support to read and parse Linux DNS configuration to disable DoH on unsupported configurations.

Timeline

Targeting release in M91, but given the tight timeline, could easily slip to M92.

Implementation bug

https://crbug.com/1127671