text: // NodeList.forEach
  if (window.NodeList && !NodeList.prototype.forEach) {
    NodeList.prototype.forEach = function (callback, thisArg) {
        thisArg = thisArg || window;
        for (var i = 0; i < this.length; i++) {
            callback.call(thisArg, this[i], i, this);
        }
    };
  }
  
  // Object.assign
  if (typeof Object.assign != 'function') {
      // Must be writable: true, enumerable: false, configurable: true
      Object.defineProperty(Object, "assign", {
        value: function assign(target, varArgs) { // .length of function is 2
          'use strict';
          if (target == null) { // TypeError if undefined or null
            throw new TypeError('Cannot convert undefined or null to object');
          }
    
          var to = Object(target);
    
          for (var index = 1; index < arguments.length; index++) {
            var nextSource = arguments[index];
    
            if (nextSource != null) { // Skip over if undefined or null
              for (var nextKey in nextSource) {
                // Avoid bugs when hasOwnProperty is shadowed
                if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
                  to[nextKey] = nextSource[nextKey];
                }
              }
            }
          }
          return to;
        },
        writable: true,
        configurable: true
      });
    }