Fix Navigate.popstate on Chrome

builds/crx/script.js

@@ -12173,14 +12173,15 @@
       }
     },
     popstate: function() {
-      return Navigate.popstate = function() {
+      $.off(window, 'popstate', Navigate.popstate);
+      return $.on(window, 'popstate', Navigate.popstate = function() {
         var a;
         a = $.el('a', {
           href: window.location,
           id: 'popState'
         });
         return Navigate.navigate.call(a);
-      };
+      });
     },
     refresh: function(context) {
       var boardID, feature, name, threadID, view, _i, _len, _ref, _ref1;

src/General/Navigate.coffee

@@ -290,12 +290,16 @@ Navigate =
       Unread.read()
       Unread.update()
 
-  popstate: -> <% if (type === 'crx') { %> Navigate.popstate = -> <% } %> # blink/webkit throw a popstate on page load. Not what we want.
+  popstate: -> <% if (type === 'crx') { %>
-    a = $.el 'a',
+    $.off window, 'popstate', Navigate.popstate
-      href: window.location
+    $.on  window, 'popstate', Navigate.popstate = ->
-      id:   'popState'
+<% } %> # blink/webkit throw a popstate on page load. Not what we want.
 
-    Navigate.navigate.call a
+      a = $.el 'a',
+        href: window.location
+        id:   'popState'
+
+      Navigate.navigate.call a
 
   refresh: (context) ->
     return