There&#x27;s the firefox addon Decentraleyes <a href="https:&#x2F;&#x2F;github.com&#x2F;Synzvato&#x2F;decentraleyes" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Synzvato&#x2F;decentraleyes</a> which is trying to solve those problems, currently only the most common versions of each library are bundled, but there are plans to create more flexible bundles.<p>There&#x27;s no reason to hit the webserver with an If-modified when the libraries already include their version in the path.