fix tests

1 files changed, 2 insertions, 1 deletions

diff --git a/public/assets/javascripts/vendor/polyfill.js b/public/assets/javascripts/vendor/polyfill.js
index 499cbc5..2139618 100644
--- a/public/assets/javascripts/vendor/polyfill.js
+++ b/public/assets/javascripts/vendor/polyfill.js
@@ -48,7 +48,7 @@ function has3d(){
   } else if ( browser.webkit ) {
     browser.safari = true;
   }
-  $.browser = browser;
+  if (window.$) $.browser = browser;
   return browser;
 })( navigator.userAgent );
 
@@ -58,6 +58,7 @@ var is_ipad = (navigator.userAgent.match(/iPad/i))
 var is_android = (navigator.userAgent.match(/Android/i))
 var is_mobile = is_iphone || is_ipad || is_android
 var is_desktop = ! is_mobile;
+var app_devicePixelRatio = is_mobile ? devicePixelRatio : 1;
 
 
 // rAF shim