From 84b450533e40d2eae9de32608bc22db084da7cc8 Mon Sep 17 00:00:00 2001
From: Max Franz <maxkfranz@gmail.com>
Date: Wed, 1 Feb 2017 14:52:33 -0500
Subject: [PATCH] Make `touch*` event handlers explicitly `passive: false` in
 renderer #1702 - Test for passive event / options object for
 `addEventListener()` support - Supported browsers have all options set
 explicitly in the object - Unsupported browsers just use the `useCapture`
 boolean

---
 .../renderer/base/load-listeners.js           | 31 +++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/src/extensions/renderer/base/load-listeners.js b/src/extensions/renderer/base/load-listeners.js
index d63b3baac1..1589b90f9b 100644
--- a/src/extensions/renderer/base/load-listeners.js
+++ b/src/extensions/renderer/base/load-listeners.js
@@ -17,8 +17,35 @@ BRp.registerBinding = function( target, event, handler, useCapture ){
 BRp.binder = function( tgt ){
   var r = this;
 
-  var on = function(){
-    var args = arguments;
+  var tgtIsDom = tgt === window || tgt === document || tgt === document.body || is.domElement( tgt );
+
+  if( r.supportsPassiveEvents == null ){
+
+    // from https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md#feature-detection
+    var supportsPassive = false;
+    try {
+      var opts = Object.defineProperty( {}, 'passive', {
+        get: function(){
+          supportsPassive = true;
+        }
+      } );
+
+      window.addEventListener( 'test', null, opts );
+    } catch( err ){}
+
+    r.supportsPassiveEvents = supportsPassive;
+  }
+
+  var on = function( event, handler, useCapture ){
+    var args = Array.prototype.slice.call( arguments );
+
+    if( tgtIsDom && r.supportsPassiveEvents ){ // replace useCapture w/ opts obj
+      args[2] = {
+        capture: useCapture != null ? useCapture : false,
+        passive: false,
+        once: false
+      };
+    }
 
     r.bindings.push({
       target: tgt,