phantomjs-polyfill.js

// https://github.com/ariya/phantomjs/issues/10522
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind

if (!Function.prototype.bind) {
  Function.prototype.bind = function(oThis) {
    if (typeof this !== "function") {
      // closest thing possible to the ECMAScript 5
      // internal IsCallable function
      throw new TypeError(
        "Function.prototype.bind what is trying to be bound is not callable");
    }

    var aArgs = Array.prototype.slice.call(arguments, 1),
      fToBind = this,
      fNOP = function() {},
      fBound = function() {
        return fToBind.apply(this instanceof fNOP && oThis ? this : oThis,
          aArgs.concat(Array.prototype.slice.call(arguments)));
      };

    fNOP.prototype = this.prototype;
    fBound.prototype = new fNOP();

    return fBound;
  };
}