https://answers.launchpad.net/ecap/+faq/1793 very well describes a few of the obstacles, although solvable. I.e. a good solution should not rely on MIME-types, as stated in the article correctly, but do an analysis of the datastream itself, to identify HTML to be modified. Regarding legal issues, as I have a good working solution, at least in my country (not US) this issue is difficult to decide, according to the expertise of a special lawyer for internet and copyrights, as there is no court decision up to now. Of course, it would be a bad idea to inject an ad for a law consulting co into another lawyers web site :-) -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Question-in-adding-banner-for-ads-by-squid-tp4664976p4664995.html Sent from the Squid - Users mailing list archive at Nabble.com.