Firefox using google proxy WTF?

[Christoph Höger]

Am Samstag, den 13.02.2010, 13:54 -0500 schrieb Sam Varshavchik:
> Christoph Höger writes:
> 
> > Hi,
> > 
> > I am using an of the shelf firefox rpm. Today the strangest thing
> > happened to me: I got an google branded 404 when searching wikipedia.
> > The site is definitely up and running and my network settings must be
> > fine, since Konqueror and wget get the site (see attached screenshot).
> > 
> > Obviously I only noted it, because googles proxy must have been down or
> > something.
> > 
> > So since when does google proxy my http traffic? And who allowed this
> > behavior in a fedora rpm?
> 
> Looks very familiar. Are you using privoxy? I was getting the same weird 
> clusterfscks until I figured it out.
> 
> Edit /etc/privoxy/config and comment out the keep-alive-timeout setting. The 
> default Fedora rpm package installs a non-default keep-alive-timeout 
> setting.
> 
> Looks like there's a disagreement between Firefox and privoxy regarding how 
> HTTP/1.1 persistent connections should work in a proy setting. Privoxy seems 
> to believe that if the client wants to proxy to a different host, when using 
> keep-alives, that the client should use a different proxy connection. 
> Privoxy assumes that, with keep-alive, the client would only send requests 
> to the same server, through the persistent connection.
> 
> Firefox, though, apparently believes that it is entitled to use an existing 
> persistent connection to an HTTP proxy to send an HTTP request to a 
> different host.
> 
> Ergo, privoxy ends up forwarding an HTTP request to the wrong host.

I am not using privoxy.
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