Fix Github Issue #768 : Only preventing touchend events for modals

js/modals.js

@@ -47,6 +47,6 @@
       modal.dispatchEvent(eventToDispatch);
       modal.classList.toggle('active');
     }
-    event.preventDefault(); // prevents rewriting url (apps can still use hash values in url)
+    if (modal) event.preventDefault(); // prevents rewriting url (apps can still use hash values in url)
   });
 }());