[squid-users] New error on version 3.5.19

[Amos Jeffries]

On 27/09/2016 7:01 a.m., Berkes, David wrote:
> Hi squid community, I'm seeing a new error in my squid logs.  These
> are iphones configured for a squid proxy.  They are running IOS
> 10.0.2 and siri is now failing.  You can see the request is allowed
> through, but is preceded with the error lines then siri fails.  Any
> idea of what these errors indicate.  They seem to be the root cause
> for the siri requests failing.
> 

"error:invalid-request" indicates that the traffic arriving to Squid is
not using HTTP message format.

You are going to need a "debug_options ALL,9" cache.log trace or
perhapse a TCP packet trace (with full packet payloads recorded) in
order to find out what is actually being set to Squid.

At a guess I suspect it might be WebSockets if you are intercepting port 80.

Amos