Re: [squid-users] Keep-Alive header not being displayed

On Thu, 2008-09-11 at 19:11 -0700, JL wrote:

> I have configured my browser to use my Squid HTTP proxy and am going
> to the following URL to check the HTTP headers:
> http://www.proxyjudge.biz/az.php
>
> Unfortunately the HTTP_KEEP_ALIVE = 300 header is not displayed and I
> would like it to be.

Squid does not forward the Keep-Alive header because Squid considers it
a hop-by-hop header. Per HTTP protocol, hop-by-hop headers are not
forwarded by proxies. When a client sends Keep-Alive to a proxy, the
header is for the proxy and not for the origin server; it only applies
to the connection that ends at the proxy.

FWIW, the header itself is outdated and probably not supported by many
HTTP agents. Squid itself uses a Connection header to signal HTTP
connection persistence. The Connection is also a hop-by-hop header,
naturally.

It may help if you explain why you want to see that header sent to the
script. What are you trying to accomplish or check?

HTH,

Alex.
Received on Fri Sep 12 2008 - 05:59:06 MDT