Handle the undefined Interface in the proxy

facebook · Mar 4, 2016 · e8cc613 · e8cc613
1 parent 36798f7
commit e8cc613
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/renderers/dom/client/syntheticEvents/SyntheticEvent.js b/src/renderers/dom/client/syntheticEvents/SyntheticEvent.js
@@ -195,8 +195,13 @@ if (__DEV__) {
       apply: function(constructor, that, args) {
         return new Proxy(constructor.apply(that, args), {
           set: function(target, prop, value) {
+            // target.constructor.Interface isn't defined when we create a base
+            // SyntheticEvent (eg, when handling load), so just fall back to the
+            // handling that explicitly.
+            // TODO: fix that
+            var iface = target.constructor.Interface || EventInterface;
             if (prop !== 'isPersistent' &&
-                !target.constructor.Interface.hasOwnProperty(prop) &&
+                !iface.hasOwnProperty(prop) &&
                 shouldBeReleasedProperties.indexOf(prop) === -1) {
               warning(
                 didWarnForAddedNewProperty || target.isPersistent(),