(js) Add support for XSRF token with file uploader

UI/WebServerResources/js/Common/angular-file-upload.trump.js

@@ -0,0 +1,27 @@
+/* -*- Mode: javascript; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+
+(function() {
+  'use strict';
+
+  /**
+   * Set XSRF header if the cookie exists.
+   * Solution based on the following discussion:
+   * https://github.com/nervgh/angular-file-upload/issues/360
+   */
+  angular
+    .module('angularFileUpload')
+    .decorator('FileUploader', FileUploaderDecorator);
+
+  /**
+   * @ngInject
+   */
+  FileUploaderDecorator.$inject = ['$delegate', '$cookies'];
+  function FileUploaderDecorator($delegate, $cookies) {
+    $delegate.prototype.onBeforeUploadItem = function(item) {
+      var token = $cookies.get('XSRF-TOKEN');
+      if (token)
+        item.headers = {'X-XSRF-TOKEN': token};
+    };
+    return $delegate;
+  }
+})();