From 8a12d91925fd509554598c10fe8242cc28c30d2d Mon Sep 17 00:00:00 2001
From: Michael Roytman <mroytman@edx.org>
Date: Mon, 4 Dec 2017 10:29:07 -0500
Subject: [PATCH] fix(StatusAlert): Fix focus error for dismissible alert.
 (#89)

StatusAlert requires a check for existence of xButton in componentDidUpdate to prevent errors when
displaying dismissible alerts.
---
 src/StatusAlert/index.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/StatusAlert/index.jsx b/src/StatusAlert/index.jsx
index 411b8a7c36..11242b4642 100644
--- a/src/StatusAlert/index.jsx
+++ b/src/StatusAlert/index.jsx
@@ -32,7 +32,7 @@ class StatusAlert extends React.Component {
   }
 
   componentDidUpdate(prevState) {
-    if (this.state.open && !prevState.open) {
+    if (this.state.open && !prevState.open && this.xButton) {
       this.xButton.focus();
     }
   }