tree f9cc3c58822a14e804ce6e751b4917c31e2e58d2
parent c28cec3fbeb3f33b172831a146294afc0830edd7
author Maxim Dounin <mdounin@mdounin.ru> 1617750209 +0300
committer Maxim Dounin <mdounin@mdounin.ru> 1617750209 +0300

HTTP/2: relaxed PRIORITY frames limit.

Firefox uses several idle streams for PRIORITY frames[1], and
"http2_max_concurrent_streams 1;" results in "client sent too many
PRIORITY frames" errors when a connection is established by Firefox.

Fix is to relax the PRIORITY frames limit to use at least 100 as
the initial value (which is the recommended by the HTTP/2 protocol
minimum limit on the number of concurrent streams, so it is not
unreasonable for clients to assume that similar number of idle streams
can be used for prioritization).

[1] https://hg.mozilla.org/mozilla-central/file/32a9e6e145d6e3071c3993a20bb603a2f388722b/netwerk/protocol/http/Http2Stream.cpp#l1270