diff --git a/src/components/drawing/index.js b/src/components/drawing/index.js
index b6c4b999fe3..2c9a6a6261c 100644
--- a/src/components/drawing/index.js
+++ b/src/components/drawing/index.js
@@ -462,7 +462,8 @@ drawing.makeTester = function(gd) {
             left: '-10000px',
             top: '-10000px',
             width: '9000px',
-            height: '9000px'
+            height: '9000px',
+            'z-index': '1'
         });
 
     // browsers differ on how they describe the bounding rect of