Transparent Proxy: Squid allow Chrome to open gmail.com when it's blocked

[Dawie_Kabouter]

Hi

I have a very strange issue, I have blocked Webmail category on SquidGuard and I know when operating in transparent mode the only way to block the HTTPS connection is to block it in Squid. I did this, however and  Chrome somehow find it appropriate to display the page.

In IE this is the page I get:

ERROR

The requested URL could not be retrieved

–------------------------------------------------------------------------------

While trying to retrieve the URL: http://www.gmail.com/

The following error was encountered:

• Access Denied.

Access control configuration prevents your request from being allowed at this time. Please contact your service provider if you feel this is incorrect.

Your cache administrator is admin@localhost.

This is the desired result and this does happen in Firefox and other browsers except for Google Chrome.

Anyone had the same problem?

[jimp]

If chrome is actually using the proxy, consult the proxy logs from the transaction to see just what server Chrome is hitting. It may be a special/different URL.

[Dawie_Kabouter]

Hi

The funny part is I am getting this in the logs:

192.168.123.119 TCP_DENIED/403 1340 GET http://mail.google.com/ - NONE/- text/html
192.168.123.114 TCP_DENIED/403 1336 GET http://www.gmail.com/ - NONE/- text/html

But still it shows the page…

Any other ideas?

[Dawie_Kabouter]

No one…?

[Dawie_Kabouter]

To those intressted, I managed to archive my goal by setting up an Firewall rule to REJECT the following Network range: 74.125.0.0/16