vendor/assets/javascripts/bower/vue/src/directives/on.js in fluentd-ui-0.3.0 vs vendor/assets/javascripts/bower/vue/src/directives/on.js in fluentd-ui-0.3.1

@@ -44,10 +44,12 @@
 
     reset: function () {
         var el = this.iframeBind
             ? this.el.contentWindow
             : this.el
-        el.removeEventListener(this.arg, this.handler)
+        if (this.handler) {
+            el.removeEventListener(this.arg, this.handler)
+        }
     },
 
     unbind: function () {
         this.reset()
         this.el.removeEventListener('load', this.iframeBind)
\ No newline at end of file