Resolve a race condition?

builds/appchan-x.user.js

@@ -18662,6 +18662,13 @@
           return;
         }
       }
+      if (Navigate.isNavigating) {
+        return e != null ? e.preventDefault() : void 0;
+      }
+      Navigate.isNavigating = true;
+      setTimeout((function() {
+        return delete Navigate.isNavigating;
+      }), 100);
       if (this.pathname === Navigate.path) {
         if (g.VIEW === 'thread') {
           ThreadUpdater.update();

builds/crx/script.js

@@ -18696,6 +18696,13 @@
           return;
         }
       }
+      if (Navigate.isNavigating) {
+        return e != null ? e.preventDefault() : void 0;
+      }
+      Navigate.isNavigating = true;
+      setTimeout((function() {
+        return delete Navigate.isNavigating;
+      }), 100);
       if (this.pathname === Navigate.path) {
         if (g.VIEW === 'thread') {
           ThreadUpdater.update();

src/General/Index.coffee

@@ -101,12 +101,15 @@ Index =
     @selectMode  = $ '#index-mode',   @navLinks
     @selectSort  = $ '#index-sort',   @navLinks
     @selectSize  = $ '#index-size',   @navLinks
+
     $.on @searchInput, 'input', @onSearchInput
     $.on $('#index-search-clear', @navLinks), 'click', @clearSearch
     $.on $('#hidden-toggle a',    @navLinks), 'click', @cb.toggleHiddenThreads
+
     for select in [@selectMode, @selectSort, @selectSize]
       select.value = Conf[select.name]
       $.on select, 'change', $.cb.value
+
     $.on @selectMode, 'change', @cb.mode
     $.on @selectSort, 'change', @cb.sort
     $.on @selectSize, 'change', @cb.size

src/General/Navigate.coffee

@@ -206,6 +206,13 @@ Navigate =
         Navigate.setMode @ unless e.button is 2 # Right Click
         return
 
+    return e?.preventDefault() if Navigate.isNavigating
+
+    Navigate.isNavigating = true
+
+    # XXX Prevent accidental double-navigates race condition
+    setTimeout (-> delete Navigate.isNavigating), 100
+
     if @pathname is Navigate.path
       if g.VIEW is 'thread'
         ThreadUpdater.update()