IsExempted checks whether given path is exempt from CSRF checks or not.

ExemptedFullPath exempts one exact path from CSRF checks.

ExemptedGlob exempts one path from CSRF checks using pattern matching. See http://golang.org/pkg/path/#Match

A CSRF token is generated by encoding bytes read from crypto/rand as base64.

ExemptedFullPath exempts exact paths from CSRF checks.

ExemptedGlobs exempts paths from CSRF checks using pattern matching.

See http://en.wikipedia.org/wiki/Same-origin_policy