: Use - or misuse - of ETags I'm using an application that sets ETags by md5()ing the URL. As I understand it, that's quite insane. In effect, it means that content for a specific URL won't

@Pierce454

Well, if the content never, ever changes, then I guess it would be OK. Otherwise... no.

Of course, browsers will still need to contact the server (using a conditional GET request) to determine whether the content has changed, so it's not quite as bad as, say, setting an Expires date too far in the future: as soon as you fix the application to use ETags correctly, the old URL-based ETags will no longer match and everything will work normally.

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