And on top of that, some redirect you to another page to display the no-js-warning. Then you enable JS for the site and reload but will get the same warning because you're no longer on the page you visited...
I think it is mod_pagespeed that's doing this, kinda silly.
NoScript, at least, has an option to catch and stop redirects of this kind. They can be quite funny when you can see a perfectly loaded page that wants to send you elsewhere.
I think it is mod_pagespeed that's doing this, kinda silly.