> for caching purposes, not for security purposes Whether it's for caching or security purposes, a hash of the contents is a hash of the contents. The link yo

> for caching purposes, not for security purposes Whether it's for caching or security purposes, a hash of the contents is a hash of the contents. The link you shared is about tracking whether a given document is already cached. That's the same problem as with normal caching. At least the top N libraries could be downloaded with a browser update and be equal for everyone.