diff --git a/common/modules/base.jsm b/common/modules/base.jsm
index 874d2cbf..f5f66165 100644
--- a/common/modules/base.jsm
+++ b/common/modules/base.jsm
@@ -1053,14 +1053,14 @@ function iter(obj) {
     let args = arguments;
     let res = Iterator(obj);
 
-    if (isinstance(args, ["Iterator", "Generator"]))
-        ;
-    else if (args.length > 1)
+    if (args.length > 1)
         res = (function () {
             for (let i = 0; i < args.length; i++)
-                for (let j in Iterator(args[i]))
+                for (let j in iter(args[i]))
                     yield j;
         })();
+    else if (isinstance(obj, ["Iterator", "Generator"]))
+        ;
     else if (ctypes && ctypes.CData && obj instanceof ctypes.CData) {
         while (obj.constructor instanceof ctypes.PointerType)
             obj = obj.contents;
diff --git a/pentadactyl/content/config.js b/pentadactyl/content/config.js
index b3abe375..131cebca 100644
--- a/pentadactyl/content/config.js
+++ b/pentadactyl/content/config.js
@@ -311,7 +311,7 @@ var Config = Module("config", ConfigBase, {
         completion.sidebar = function sidebar(context) {
             let menu = document.getElementById("viewSidebarMenu");
             context.title = ["Sidebar Panel"];
-            context.completions = Array.map(menu.childNodes, function (n) [n.label, ""]);
+            context.completions = Array.map(menu.childNodes, function (n) [n.getAttribute("label"), ""]);
         };
 
         completion.addUrlCompleter("l",