I have a watchguard firebox which on which I recently enabled the Webblocker. All blocking settings seem to be working correctly except there is an issue with downloading pdf's inside a browser.
If a user right clicks the pdf link they are able to download and then view. Or if I log into a bypass account which has a higher precedent order than the http-proxy, https-proxy filters it also downloads fine. The pdf download quits silently with no mention of the WebBlocker rule blocking the download. I see nothing in the settings of the various WebBlocker rules (Box default, http-proxy, https-proxy) which would suggest that pdfs are being blocked.
I have fixed all previous errors by focusing in on the blocking message sent from the Firebox. I am stumped on this one.