Re: Error 408 with Chrome

Mon, 26 May 2014 08:53:11 -0700 

Le 26/05/2014 16:13, Willy Tarreau a écrit :

Hi Arnall,

On Mon, May 26, 2014 at 11:56:52AM +0200, Arnall wrote:

Hi Willy,

same problem here with Chrome version 35.0.1916.114 m and :
HA-Proxy version 1.4.22 2012/08/09 (Debian 6) Kernel 3.8.13-OVH
HA-Proxy version 1.5-dev24-8860dcd 2014/04/26 (Debian GNU/Linux 7.5)
Kernel 3.10.13-OVH

<html><body><h1>408 Request Time-out</h1>
Your browser didn't send a complete request in time.
</body></html>

Timing : Blocking 2ms /  Receiving : 1ms

Where are you measuring this ? I suspect on the browser, right ? In
this case it confirms the malfunction of the preconnect. You should
take a network capture which will be usable as a reliable basis for
debugging. I'm pretty sure that what you'll see in fact is the following
sequence :

    browser                     haproxy
        ------- connect ---------->
        ... long pause ...
        <-------- 408 + FIN -------
        ... long pause ...
        ------- send request ----->
        <-------- RST -------------

And you see the error in the browser immediately. The issue is then
caused by the browser not respecting this specific rule :


Yes it was measured on the browser (Chrome network monitor)
I 've made a network capture for you.(in attachment)

Thanks.
Arnaud.

Attachment: chrome_haproxy_error408.pcap
Description: Binary data

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