CSS: Clean up memory leak in reliableMarginRight

Fixes gh-1795
Closes gh-1893

Thanks for the report flexphperia!
(cherry picked from commit 7d15b4d1f181de8868c375c545a51e4dfc28a611)

Conflicts:
	src/css/support.js

diff --git a/src/css/support.js b/src/css/support.js
index 4a8fc87ac1efe0af9d3702c3a1129d0e26c0f61e..05f5cc8666168fe016ad1c2c8b71c0bd3bcb5425 100644 (file)
--- a/src/css/support.js
+++ b/src/css/support.js
@@ -120,6 +120,8 @@ define([
 
                        reliableMarginRightVal =
                                !parseFloat( ( window.getComputedStyle( contents, null ) || {} ).marginRight );
+
+                       div.removeChild( contents );
                }
 
                // Support: IE8