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HTTP Content Security Policy Detector 0.78.1-signed.1-signed
It scrutinizes the HTTP Response Headers for the presence of X-Content-Security-Policy. Refer : [http://people.mozilla.com/~bsterne/content-security-policy]
About this Add-on
CSP is designed to be fully backward compatible; browsers that don't support it still work with servers that implement it, and vice-versa. Browsers that don't support CSP simply ignore it, functioning as usual, defaulting to the standard same-origin policy for web content.
For more details refer: https://developer.mozilla.org/en/introducing_content_security_policy