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diff --git a/webclients/novnc/vendor/promise.js b/webclients/novnc/vendor/promise.js
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+/* Copyright (c) 2014 Taylor Hakes
+ * Copyright (c) 2014 Forbes Lindesay
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+(function (root) {
+
+  // Store setTimeout reference so promise-polyfill will be unaffected by
+  // other code modifying setTimeout (like sinon.useFakeTimers())
+  var setTimeoutFunc = setTimeout;
+
+  function noop() {}
+  
+  // Polyfill for Function.prototype.bind
+  function bind(fn, thisArg) {
+    return function () {
+      fn.apply(thisArg, arguments);
+    };
+  }
+
+  function Promise(fn) {
+    if (typeof this !== 'object') throw new TypeError('Promises must be constructed via new');
+    if (typeof fn !== 'function') throw new TypeError('not a function');
+    this._state = 0;
+    this._handled = false;
+    this._value = undefined;
+    this._deferreds = [];
+
+    doResolve(fn, this);
+  }
+
+  function handle(self, deferred) {
+    while (self._state === 3) {
+      self = self._value;
+    }
+    if (self._state === 0) {
+      self._deferreds.push(deferred);
+      return;
+    }
+    self._handled = true;
+    Promise._immediateFn(function () {
+      var cb = self._state === 1 ? deferred.onFulfilled : deferred.onRejected;
+      if (cb === null) {
+        (self._state === 1 ? resolve : reject)(deferred.promise, self._value);
+        return;
+      }
+      var ret;
+      try {
+        ret = cb(self._value);
+      } catch (e) {
+        reject(deferred.promise, e);
+        return;
+      }
+      resolve(deferred.promise, ret);
+    });
+  }
+
+  function resolve(self, newValue) {
+    try {
+      // Promise Resolution Procedure: https://github.com/promises-aplus/promises-spec#the-promise-resolution-procedure
+      if (newValue === self) throw new TypeError('A promise cannot be resolved with itself.');
+      if (newValue && (typeof newValue === 'object' || typeof newValue === 'function')) {
+        var then = newValue.then;
+        if (newValue instanceof Promise) {
+          self._state = 3;
+          self._value = newValue;
+          finale(self);
+          return;
+        } else if (typeof then === 'function') {
+          doResolve(bind(then, newValue), self);
+          return;
+        }
+      }
+      self._state = 1;
+      self._value = newValue;
+      finale(self);
+    } catch (e) {
+      reject(self, e);
+    }
+  }
+
+  function reject(self, newValue) {
+    self._state = 2;
+    self._value = newValue;
+    finale(self);
+  }
+
+  function finale(self) {
+    if (self._state === 2 && self._deferreds.length === 0) {
+      Promise._immediateFn(function() {
+        if (!self._handled) {
+          Promise._unhandledRejectionFn(self._value);
+        }
+      });
+    }
+
+    for (var i = 0, len = self._deferreds.length; i < len; i++) {
+      handle(self, self._deferreds[i]);
+    }
+    self._deferreds = null;
+  }
+
+  function Handler(onFulfilled, onRejected, promise) {
+    this.onFulfilled = typeof onFulfilled === 'function' ? onFulfilled : null;
+    this.onRejected = typeof onRejected === 'function' ? onRejected : null;
+    this.promise = promise;
+  }
+
+  /**
+   * Take a potentially misbehaving resolver function and make sure
+   * onFulfilled and onRejected are only called once.
+   *
+   * Makes no guarantees about asynchrony.
+   */
+  function doResolve(fn, self) {
+    var done = false;
+    try {
+      fn(function (value) {
+        if (done) return;
+        done = true;
+        resolve(self, value);
+      }, function (reason) {
+        if (done) return;
+        done = true;
+        reject(self, reason);
+      });
+    } catch (ex) {
+      if (done) return;
+      done = true;
+      reject(self, ex);
+    }
+  }
+
+  Promise.prototype['catch'] = function (onRejected) {
+    return this.then(null, onRejected);
+  };
+
+  Promise.prototype.then = function (onFulfilled, onRejected) {
+    var prom = new (this.constructor)(noop);
+
+    handle(this, new Handler(onFulfilled, onRejected, prom));
+    return prom;
+  };
+
+  Promise.all = function (arr) {
+    var args = Array.prototype.slice.call(arr);
+
+    return new Promise(function (resolve, reject) {
+      if (args.length === 0) return resolve([]);
+      var remaining = args.length;
+
+      function res(i, val) {
+        try {
+          if (val && (typeof val === 'object' || typeof val === 'function')) {
+            var then = val.then;
+            if (typeof then === 'function') {
+              then.call(val, function (val) {
+                res(i, val);
+              }, reject);
+              return;
+            }
+          }
+          args[i] = val;
+          if (--remaining === 0) {
+            resolve(args);
+          }
+        } catch (ex) {
+          reject(ex);
+        }
+      }
+
+      for (var i = 0; i < args.length; i++) {
+        res(i, args[i]);
+      }
+    });
+  };
+
+  Promise.resolve = function (value) {
+    if (value && typeof value === 'object' && value.constructor === Promise) {
+      return value;
+    }
+
+    return new Promise(function (resolve) {
+      resolve(value);
+    });
+  };
+
+  Promise.reject = function (value) {
+    return new Promise(function (resolve, reject) {
+      reject(value);
+    });
+  };
+
+  Promise.race = function (values) {
+    return new Promise(function (resolve, reject) {
+      for (var i = 0, len = values.length; i < len; i++) {
+        values[i].then(resolve, reject);
+      }
+    });
+  };
+
+  // Use polyfill for setImmediate for performance gains
+  Promise._immediateFn = (typeof setImmediate === 'function' && function (fn) { setImmediate(fn); }) ||
+    function (fn) {
+      setTimeoutFunc(fn, 0);
+    };
+
+  Promise._unhandledRejectionFn = function _unhandledRejectionFn(err) {
+    if (typeof console !== 'undefined' && console) {
+      console.warn('Possible Unhandled Promise Rejection:', err); // eslint-disable-line no-console
+    }
+  };
+
+  /**
+   * Set the immediate function to execute callbacks
+   * @param fn {function} Function to execute
+   * @deprecated
+   */
+  Promise._setImmediateFn = function _setImmediateFn(fn) {
+    Promise._immediateFn = fn;
+  };
+
+  /**
+   * Change the function to execute on unhandled rejection
+   * @param {function} fn Function to execute on unhandled rejection
+   * @deprecated
+   */
+  Promise._setUnhandledRejectionFn = function _setUnhandledRejectionFn(fn) {
+    Promise._unhandledRejectionFn = fn;
+  };
+  
+  if (typeof module !== 'undefined' && module.exports) {
+    module.exports = Promise;
+  } else if (!root.Promise) {
+    root.Promise = Promise;
+  }
+
+})(this);