better thennable check (#189)

habdelra · danmcclain · commit cae445fa3648 · 2016-05-07T12:44:14.000-07:00
diff --git a/app/services/fastboot.js b/app/services/fastboot.js
@@ -51,7 +51,7 @@ export default Ember.Service.extend({
   }),
 
   deferRendering(promise) {
-    Ember.assert('deferRendering requires a promise or thennable object', promise.then);
+    Ember.assert('deferRendering requires a promise or thennable object', typeof promise.then === 'function');
     this._fastbootInfo.deferRendering(promise);
   }
 });

Original file line number	Diff line number	Diff line change
`@@ -51,7 +51,7 @@ export default Ember.Service.extend({`
`51`	`51`	`}),`
`52`	`52`
`53`	`53`	`deferRendering(promise) {`
`54`		`- Ember.assert('deferRendering requires a promise or thennable object', promise.then);`
	`54`	`+ Ember.assert('deferRendering requires a promise or thennable object', typeof promise.then === 'function');`
`55`	`55`	`this._fastbootInfo.deferRendering(promise);`
`56`	`56`	`}`
`57`	`57`	`});`