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A new Flyspray task has been opened. Details are below. User who did this - Peter Dunkley (pd)
Attached to Project - sip-router
Summary - Kamailio does not handle HTTP Via: headers in requests and responses
Task Type - Bug Report
Category - Core
Status - Unconfirmed
Assigned To - Operating System - All
Severity - Low
Priority - Normal
Reported Version - 3.2
Due in Version - Undecided
Due Date - Undecided
Details - Via: is a valid HTTP header (RFC 2616 section 14.5) in requests and 
responses.  Unfortunately, the format of an HTTP Via: and a SIP Via: is 
different.

This means that if you are handling HTTP (for example, for XCAP) on Kamailio 
and receive a valid HTTP request with a correctly formed HTTP Via: header you 
get a parser error and the request is not handled.

Similarly, each HTTP response sent by Kamailio contains a SIP Via: header 
(which is not a valid HTTP Via: header) and this can cause problems with HTTP 
clients and proxies.

This issue was observed when the XCAP client was on a network that used a Squid 
HTTP proxy for all HTTP traffic.  The Squid proxy was inserting and processing 
HTTP Via: headers.

More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=237

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