> On Jan 27, 2017, at 3:53 PM, Jean-Paul Calderone <exar...@twistedmatrix.com> 
> wrote:
> 
> On Fri, Jan 27, 2017 at 6:52 PM, Glyph Lefkowitz <gl...@twistedmatrix.com 
> <mailto:gl...@twistedmatrix.com>> wrote:
> 
>> On Jan 27, 2017, at 3:49 PM, Jean-Paul Calderone <exar...@twistedmatrix.com 
>> <mailto:exar...@twistedmatrix.com>> wrote:
>> 
>> On Fri, Jan 27, 2017 at 6:21 PM, Glyph Lefkowitz <gl...@twistedmatrix.com 
>> <mailto:gl...@twistedmatrix.com>> wrote:
>> 
>>> On Jan 27, 2017, at 3:12 PM, Craig Rodrigues <rodr...@crodrigues.org 
>>> <mailto:rodr...@crodrigues.org>> wrote:
>>> 
>>> 
>>> 
>>> On Fri, Jan 27, 2017 at 2:29 PM, Glyph Lefkowitz <gl...@twistedmatrix.com 
>>> <mailto:gl...@twistedmatrix.com>> wrote:
>>> 
>>>> On Jan 27, 2017, at 2:03 PM, Craig Rodrigues <rodr...@crodrigues.org 
>>>> <mailto:rodr...@crodrigues.org>> wrote:
>>>> 
>>>> Hi,
>>>> I can't seem to create a ticket in Trac.  Can someone look?
>>>> 
>>> I can create tickets.  What behavior do you see?
>>> 
>>> 
>>> After entering all the fields to create the ticket, and then clicking 
>>> submit, it would just hang
>>> without creating the ticket.
>> 
>> Forever? No timeout?  Just the HTTP POST never returns?
>> 
>> 
>> FWIW, I've been experiencing similar problems.  In my case, the POST doesn't 
>> return for as long as I care to wait (in one case, around 20 minutes).  
>> Re-submitting, sometimes 3-5 times, generally results in a successful 
>> eventually.  This is with Chrome Version 54.0.2840.90 (64-bit) on Ubuntu 
>> 16.10.
> 
> I'm using Safari 10.0.3 (12602.4.8) on Sierra.
> 
> Interesting to check: I'm using HTTP/2 to talk to twistedmatrix.com 
> <http://twistedmatrix.com/>.  Are either of you?  I wonder if this is a bug 
> in the HTTP/2 stack or perhaps one of the HTTP/1.1 changes made to 
> accommodate the HTTP/2 implementation.
> 
> My browser is not using HTTP/2 to talk to twistedmatrix.com 
> <http://twistedmatrix.com/> (idnar suggests this is because lack of ALPN in 
> twistedmatrix.com <http://twistedmatrix.com/>'s OpenSSL and lack of NPN in 
> Chrome).

It might be interesting to upgrade to Twisted trunk to see if some of the HTTP 
server bugfixes that have landed will address this; however, I can't come up 
with a coherent theory as to why certain POSTs would just hang.

-g
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