tree 530a017da2faa336ae129b487d5370e3d817f3bd
parent ecb5b89e176c4a32eafeb9a209b26cad1a22527d
author Willy Tarreau <w@1wt.eu> 1579853273 +0100
committer Willy Tarreau <w@1wt.eu> 1579870601 +0100
encoding latin1

BUG/MEDIUM: mux-h2: make sure we don't emit TE headers with anything but "trailers"

While the H2 parser properly checks for the absence of anything but
"trailers" in the TE header field, we forget to check this when sending
the request to an H2 server. The problem is that an H2->H2 conversion
may keep "gzip" and fail on the next stage.

This patch makes sure that we only send "TE: trailers" if the TE header
contains the "trailers" token, otherwise it's dropped.

This fixes issue #464 and should be backported till 1.9.

(cherry picked from commit bb2c4ae06566b8a8789caca4c48524aeb88cbc1b)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit e22b3fb31968569194b1f848fadb4ca01f4dfc73)
[wt: adjusted context]
Signed-off-by: Willy Tarreau <w@1wt.eu>