[fixed] Ignore extraneous popstate events in WebKit

mjackson · mjackson · commit 3d8a88333f9b · 2015-02-17T15:15:45.000-08:00
Fixes #753
diff --git a/modules/locations/HistoryLocation.js b/modules/locations/HistoryLocation.js
@@ -25,7 +25,10 @@ function notifyChange(type) {
 
 var _isListening = false;
 
-function onPopState() {
+function onPopState(event) {
+  if (event.state === undefined)
+    return; // Ignore extraneous popstate events in WebKit.
+
   notifyChange(LocationActions.POP);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,10 @@ function notifyChange(type) {`
`25`	`25`
`26`	`26`	`var _isListening = false;`
`27`	`27`
`28`		`-function onPopState() {`
	`28`	`+function onPopState(event) {`
	`29`	`+ if (event.state === undefined)`
	`30`	`+ return; // Ignore extraneous popstate events in WebKit.`
	`31`	`+`
`29`	`32`	`notifyChange(LocationActions.POP);`
`30`	`33`	`}`
`31`	`34`