Patch for the js warnings referred to in #966

src/octoprint/static/js/lib/bootstrap/bootstrap.js

@@ -726,8 +726,9 @@
       selector = selector && /#/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
     }
 
-    $parent = $(selector)
-    $parent.length || ($parent = $this.parent())
+    $parent = selector && (selector != "#") && $(selector)
+
+    if (!$parent || !$parent.length) $parent = $this.parent()
 
     return $parent
   }
@@ -2156,4 +2157,4 @@
   })
 
 
-}(window.jQuery);
+}(window.jQuery);