From 4d817245f79c10d548abbd541c89ed3ad1ea5cac Mon Sep 17 00:00:00 2001
From: Nick Lockwood <nicklockwood@fb.com>
Date: Mon, 10 Aug 2015 19:09:38 -0100
Subject: [PATCH] Fix crash when using alert() polyfill due to null callback

---
 .../Initialization/InitializeJavaScriptAppEngine.js             | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Libraries/JavaScriptAppEngine/Initialization/InitializeJavaScriptAppEngine.js b/Libraries/JavaScriptAppEngine/Initialization/InitializeJavaScriptAppEngine.js
index 6a1dfa3cd7bee4..1aefe0c589034b 100644
--- a/Libraries/JavaScriptAppEngine/Initialization/InitializeJavaScriptAppEngine.js
+++ b/Libraries/JavaScriptAppEngine/Initialization/InitializeJavaScriptAppEngine.js
@@ -90,7 +90,7 @@ function setUpAlert() {
         message: '' + text,
         buttons: [{'cancel': 'OK'}],
       };
-      RCTAlertManager.alertWithArgs(alertOpts, null);
+      RCTAlertManager.alertWithArgs(alertOpts, function () {});
     };
   }
 }