Content Security Policy
Please vote for CSP Level 2 here:
A J commented
I agree with Alex that you also need to support CSP 2. Thanks.
Alex Sexton commented
Do you plan on supporting CSP2 or just CSP1.1? The current preview release appears to not have the SecurityPolicyViolation event ( http://slex.me/image/1h1g2P3y1F2N ), but it would be really nice to be able to rely on this in the future.
It's on Firefox's 2015 roadmap: https://bugzilla.mozilla.org/show_bug.cgi?id=1037335 and is shipped in Chrome Dev Channel: https://code.google.com/p/chromium/codesearch#chromium/src/third_party/WebKit/LayoutTests/http/tests/security/contentSecurityPolicy/resources/securitypolicyviolation-test.js&q=document.addEventListener%5C%28%5C%27securitypolicyviolation%5C%27&sq=package:chromium&type=cs&l=3