The first time I read your post I thought you might be referring to some of the stuff addressed in: <a href="http:&#x2F;&#x2F;www.html5rocks.com&#x2F;en&#x2F;tutorials&#x2F;security&#x2F;content-security-policy&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.html5rocks.com&#x2F;en&#x2F;tutorials&#x2F;security&#x2F;content-secu...</a> with the sha1 hashes for scripts.<p>There is also the idea of bundling in popular scripts to the browsers themselves. There are a few different discussion threads on StackOverflow about it like <a href="http:&#x2F;&#x2F;stackoverflow.com&#x2F;questions&#x2F;8287607&#x2F;why-is-jquery-not-integrated-within-the-browser" rel="nofollow">http:&#x2F;&#x2F;stackoverflow.com&#x2F;questions&#x2F;8287607&#x2F;why-is-jquery-not...</a>