fix: should only trigger start handler once

Closes #306
fengyuanchen · Feb 27, 2018 · c66d13b · c66d13b
1 parent 33991a9
commit c66d13b
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/js/cropper.js b/src/js/cropper.js
@@ -221,7 +221,9 @@ class Cropper {
       if (element.complete) {
         this.timeout = setTimeout(start, 0);
       } else {
-        addListener(element, EVENT_LOAD, start);
+        addListener(element, EVENT_LOAD, start, {
+          once: true,
+        });
       }
     } else {
       image.onload = start;