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From Mark Thomas <ma...@apache.org>
Subject Re: 9.0.x, HTTP/2, Windows
Date Wed, 11 Nov 2015 15:25:59 GMT
On 10/11/2015 21:57, Mark Thomas wrote:
> On 10/11/2015 21:54, Rémy Maucherat wrote:
>> 2015-11-10 22:34 GMT+01:00 Mark Thomas <markt@apache.org>:
>>
>>> Just a quick update on the issues Violeta reported with 9.0.x, HTTP/2
>>> and Windows.
>>>
>>> I can repeat the Chrome + WebSocket == failure result
>>>
>>
>> What is the expected test result ? If using ALPN, chrome connects using
>> HTTP/2, which then has no way to upgrade to something else, including
>> websockets. Effectively, this means that websockets applications won't
>> work, but this looks normal to me (and it fails also on Linux).
> 
> Ah. That would explain it. We'd need to put WebSockets on a connector
> without ALPN support then.

Since I had everything set up, I took a look at the network traffic and
all I was seeing was a single request (over h2) for drawboard.xhtml.

I did some digging and found the Chrome was reporting errors in that
page because no content-type was set. I've fixed that header (and a
couple of others) and now the WebSocket examples are working over h2 in
Chrome.

>>> For ( Chrome | FF ) + stockticker, I see a long pause before any content
>>> appears, then I get about 30 lines, then lines start appearing
>>> individually as expected.
>>>
>>
>> I didn't notice any issue on stockticker however (also on Linux).
> 
> Yeah, it works on Linux. Not sure what is going on. May be a Windows
> network issue. I'll need to fire up Wireshark to check exactly what is
> happening when.
> 
> Thanks for the additional info.

I've confirmed with Wireshark that the stock prices are sent by Tomcat
and I can't see anything different compared to HTTP/1.1. It looks like
some sort of buffering issue but I'm not sure where the buffering is
taking place. Everything works as expected when I use curl so I suspect
a browser buffering issue.

Mark


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