Chrome 55 - ERR_SPDY_COMPRESSION_ERROR

[Durga Srinivasu Karuturi <du...@gmail.com>]

Hi,

Recent chrome  [Mac - Sierra : Version  55.0.2883.87 (64-bit) ] we are
seeing issues in http2 sites.


Initially we have seen problem with http2 table header size limit
error and to fix this, we have upgraded tomcat 8.5.4 to 8.5.9 where
tomcat has increased the header limit from 16K to 64K.


Now with latest tomcat 8.5.9 we are seeing  ERR_SPDY_COMPRESSION_ERROR
while loading dojo libraries.

Tried couple of steps (flush SPDY sokets etc) based on google search
on this issue but nothing worked..


[image: Inline image 1]

t=10513 [st= 1]     -HTTP_TRANSACTION_SEND_REQUEST

t=10513 [st= 1]     +HTTP_TRANSACTION_READ_HEADERS  [dt=36]

t=10549 [st=37]        HTTP2_STREAM_ERROR

                       --> description = "ABANDONED (stream_id=139):
https://10.104.118.174/webacs/lib/dijit/form/_ToggleButtonMixin.js.map"

                       --> status = -363

                       --> stream_id = 139

t=10549 [st=37]     -HTTP_TRANSACTION_READ_HEADERS

*                     --> net_error = -363 (ERR_SPDY_COMPRESSION_ERROR)*

t=10549 [st=37]   -URL_REQUEST_START_JOB

*                   --> net_error = -363 (ERR_SPDY_COMPRESSION_ERROR)*

t=10549 [st=37]    URL_REQUEST_DELEGATE  [dt=0]

t=10549 [st=37] -REQUEST_ALIVE

                 --> net_error = -363 (ERR_SPDY_COMPRESSION_ERROR)


Initial content is downloaded (other JS files etc) but on some dojo
libraries alone, we are this issue which make application home page
load fails.


Firefox works!


We are having latest tomcat 8.5.9 already. Not sure where else problem
now. We have not enabled any compression server side.


https://bugs.chromium.org/p/chromium/issues/detail?id=673315 (Chrome
bugs i have raised)

    My guess is that the bug is in Tomcat, in that it does not send an
HPACK dynamic table size update (so the dynamic table should be the
default 4 kB) but uses a 64 kB dynamic table.
    As soon as it references entries that are in fact already emitted,
that's a compression error.
    See https://www.ietf.org/mail-archive/web/httpbisa/current/msg27867.html
for a discussion on how to interpret the specs.

According to the chrome bug notes problem is with tome dynamic table
size 64k. I don't know how to confirm this is as tomcat issue as well.

Can somebody help here to trace the problem?