From 3431d5cee0b34ce04782101a46fa5a9df498a770 Mon Sep 17 00:00:00 2001
From: Amjad Masad <amjad.masad@gmail.com>
Date: Thu, 13 Mar 2014 18:22:39 -0400
Subject: [PATCH] Don't fail silently for null or falsy event listeners. Fix
 #1255

---
 src/browser/ui/ReactDOMComponent.js | 5 +----
 src/event/EventPluginHub.js         | 2 +-
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/src/browser/ui/ReactDOMComponent.js b/src/browser/ui/ReactDOMComponent.js
index 5b1eface68f..db483c44ece 100644
--- a/src/browser/ui/ReactDOMComponent.js
+++ b/src/browser/ui/ReactDOMComponent.js
@@ -144,12 +144,9 @@ ReactDOMComponent.Mixin = {
         continue;
       }
       var propValue = props[propKey];
-      if (propValue == null) {
-        continue;
-      }
       if (registrationNameModules[propKey]) {
         putListener(this._rootNodeID, propKey, propValue, transaction);
-      } else {
+      } else if (propValue != null) {
         if (propKey === STYLE) {
           if (propValue) {
             propValue = props.style = merge(props.style);
diff --git a/src/event/EventPluginHub.js b/src/event/EventPluginHub.js
index 92c72618ccc..66472193bca 100644
--- a/src/event/EventPluginHub.js
+++ b/src/event/EventPluginHub.js
@@ -159,7 +159,7 @@ var EventPluginHub = {
       'Cannot call putListener() in a non-DOM environment.'
     );
     invariant(
-      !listener || typeof listener === 'function',
+      typeof listener === 'function',
       'Expected %s listener to be a function, instead got type %s',
       registrationName, typeof listener
     );