[fixed] Ignore extraneous popstate events in WebKit

Fixes remix-run#753
danieljuhl · Feb 17, 2015 · 3d8a883 · 3d8a883
1 parent 0edfac4
commit 3d8a883
Showing 1 changed file with 4 additions and 1 deletion.
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);
 }