diff --git a/lib/renderer/override.js b/lib/renderer/override.js
index 5e9d42adf61..69295d1632b 100644
--- a/lib/renderer/override.js
+++ b/lib/renderer/override.js
@@ -100,6 +100,8 @@ window.open = function(url, frameName, features) {
     features = '';
   }
   options = {};
+
+  // TODO remove hyphenated options in both of the following arrays for 1.0
   ints = ['x', 'y', 'width', 'height', 'min-width', 'max-width', 'min-height', 'minHeight', 'max-height', 'maxHeight', 'zoom-factor', 'zoomFactor'];
   const webPreferences = ['zoom-factor', 'zoomFactor', 'node-integration', 'nodeIntegration', 'preload'];