fix(fetch): correct chrome not able to load about://blank

Closes #444
angular · Sep 30, 2016 · 832baa0 · 832baa0
1 parent 7a66237
commit 832baa0
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/lib/zone.ts b/lib/zone.ts
@@ -1145,7 +1145,14 @@ const Zone: ZoneType = (function(global: any) {
   if (NativePromise) {
     patchThen(NativePromise);
     if (typeof global['fetch'] !== 'undefined') {
-      const fetchPromise = global['fetch']('about:blank');
+      var fetchPromise: Promise<any>;
+      try {
+        // In MS Edge this throws
+        fetchPromise = global['fetch']();
+      } catch (e) {
+        // In Chrome this throws instead.
+        fetchPromise = global['fetch']('about:blank');
+      }
       // ignore output to prevent error;
       fetchPromise.then(() => null, () => null);
       if (fetchPromise.constructor != NativePromise) {