Fix for html_common

lib/runtime/dart/html_common.js

 dart_library.library('dart/html_common', null, /* Imports */[
   "dart/_runtime",
   'dart/_metadata',
   'dart/core',
   'dart/html',
   'dart/typed_data',
   'dart/_js_helper',
   'dart/_native_typed_data',
   'dart/async',
   'dart/collection',
@@ skipping 600 matching lines @@
   function convertNativePromiseToDartFuture(promise) {
     let completer = async.Completer.new();
     let then = dart.dcall(/* Unimplemented unknown name */convertDartClosureToJS, dart.fn(result => completer.complete(result), dart.void, [dart.dynamic]), 1);
     let error = dart.dcall(/* Unimplemented unknown name */convertDartClosureToJS, dart.fn(result => completer.completeError(result), dart.void, [dart.dynamic]), 1);
     let newPromise = promise.then(then).catch(error);
     return completer.future;
   }
   dart.fn(convertNativePromiseToDartFuture, async.Future, [dart.dynamic]);
   class Device extends core.Object {
     static get userAgent() {
-      return dart.as(dart.dload(html.window.navigator, 'userAgent'), core.String);
+      return dart.as(dart.dload(html.window.navigator.raw, 'userAgent'), core.String);
     }
     static get isOpera() {
       if (Device._isOpera == null) {
         Device._isOpera = Device.userAgent[dartx.contains]("Opera", 0);
       }
       return Device._isOpera;
     }
     static get isIE() {
       if (Device._isIE == null) {
         Device._isIE = !dart.notNull(Device.isOpera) && dart.notNull(Device.userAgent[dartx.contains]("Trident/", 0));
@@ skipping 289 matching lines @@
   exports.isJavaScriptArray = isJavaScriptArray;
   exports.isJavaScriptSimpleObject = isJavaScriptSimpleObject;
   exports.isImmutableJavaScriptArray = isImmutableJavaScriptArray;
   exports.isJavaScriptPromise = isJavaScriptPromise;
   exports.convertNativePromiseToDartFuture = convertNativePromiseToDartFuture;
   exports.Device = Device;
   exports.FilteredElementList = FilteredElementList;
   exports.Lists = Lists;
   exports.NodeListWrapper = NodeListWrapper;
 });