Throw an error if menu.popup() has no window

lib/browser/api/menu.js

@@ -60,9 +60,9 @@ Menu.prototype.popup = function (options) {
     window = BrowserWindow.getFocusedWindow()
     if (!window && wins && wins.length > 0) {
       window = wins[0]
-      if (!window) {
-        throw new Error(`Cannot open Menu without a BrowserWindow present`)
-      }
+    }
+    if (!window) {
+      throw new Error(`Cannot open Menu without a BrowserWindow present`)
     }
   }