[Varnish] #611: Websockets support

Varnish varnish-bugs at varnish-cache.org
Sat Oct 2 14:22:08 CEST 2010

#611: Websockets support
 Reporter:  wesnoth      |        Owner:  phk     
     Type:  enhancement  |       Status:  reopened
 Priority:  normal       |    Milestone:          
Component:  varnishd     |      Version:  trunk   
 Severity:  normal       |   Resolution:          
 Keywords:               |  
Changes (by wesnoth):

  * status:  closed => reopened
  * resolution:  invalid =>


 I can now confirm that Varnish does definitely not support HTML5
 I have tested pywebsocket (http://code.google.com/p/pywebsocket/) using
 as a proxy, and it doesn't work, reporting "Header Upgrade is not

 I would really like to see support for HTML5 Websockets in Varnish. This
 is a feature
 which will be more and more common, when Firefox 4, Safari and Google
 Chrome all support Websockets.

 This is the error message reported by pywebsocket:

 ERROR:mod_pywebsocket.handshake:Handshake error: Header Upgrade is not
 [2010-10-02 14:10:19,698] [ERROR] mod_pywebsocket.handshake: Handshake
 error: Header Upgrade is not defined

Ticket URL: <http://varnish-cache.org/trac/ticket/611#comment:3>
Varnish <http://varnish-cache.org/>
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