diff --git a/src/util/browser.js b/src/util/browser.js
index 19292e89421..87cfa022038 100755
--- a/src/util/browser.js
+++ b/src/util/browser.js
@@ -69,7 +69,7 @@ exports.getImageData = function (img) {
     const context = canvas.getContext('2d');
     canvas.width = img.width;
     canvas.height = img.height;
-    context.drawImage(img, 0, 0);
+    context.drawImage(img, 0, 0, img.width, img.height);
     return context.getImageData(0, 0, img.width, img.height).data;
 };