X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/35458c009652645972a9167d80aba1c4fdce82cf..59f1a6d49644143bfe643e0cabaaea72792fa5db:/app/assets/javascripts/router.js

diff --git a/app/assets/javascripts/router.js b/app/assets/javascripts/router.js
index 654ec860b..7a61af106 100644
--- a/app/assets/javascripts/router.js
+++ b/app/assets/javascripts/router.js
@@ -50,7 +50,12 @@ OSM.Router = function(rts) {
   currentRoute.run('load', currentPath);
 
   if (window.history && window.history.pushState) {
-    $(window).on('popstate', function() {
+    // Set a non-null initial state, so that the e.originalEvent.state
+    // check below works correctly when going back to the initial page.
+    window.history.replaceState({}, document.title, window.location);
+
+    $(window).on('popstate', function(e) {
+      if (!e.originalEvent.state) return; // Is it a real popstate event or just a hash change?
       var path = window.location.pathname + window.location.search;
       if (path === currentPath) return;
       currentRoute.run('unload');