On Wednesday 27 February 2002 14:50, Mike Ely wrote: > It occurs to me that perhaps they are testing for a file download, > rather than the existence of a named window or a particular frame.
I think that's unlikely; first, the ads come from a different machine (you block based on hostname or IP address) - so the scheme would require the two servers to communicate between each other for every page viewed. This would be a nightmare to implement even on a small scale (especially considering the ad server is run by someone different than the page you're viewing.) Second, the ads are sent to the client AFTER the page has been sent (you have to get the HTML page before you can begin downloading the ads) - so how does the first server stop you from viewing the site if you've already received it? (I'm not saying it's impossible to do - just very improbable.) -Karl
