A regex (regular expression) to parse the HTTP header X-Callback

X-Callback HTTP header parse regex

// http://progrium.com/blog/2012/11/26/x-callback-header-an-evented-web-building-block/
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec

// input
var input = <http://example.com/callback/>; method="post"; secret="123"; secret2="123"

// regex deliver url and method:
// <(http:\/\/\S*)>.*method="(\w*)"

var matches = /<(http:\/\/\S*)>.*method="(\w*)"/.exec(input);
console.log(matches[1]); // http://example.com/callback/
console.log(matches[2]); // post