From 363723fc84f7b8477592e0105aeb331ec9a017af Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Mon, 14 Aug 2017 05:01:11 +0200
Subject: node_modules

---
 node_modules/react-dom/lib/ReactDebugTool.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'node_modules/react-dom/lib/ReactDebugTool.js')

diff --git a/node_modules/react-dom/lib/ReactDebugTool.js b/node_modules/react-dom/lib/ReactDebugTool.js
index 9ec0d20cd..4df393017 100644
--- a/node_modules/react-dom/lib/ReactDebugTool.js
+++ b/node_modules/react-dom/lib/ReactDebugTool.js
@@ -226,7 +226,9 @@ function markEnd(debugID, markType) {
   }
 
   performance.clearMarks(markName);
-  performance.clearMeasures(measurementName);
+  if (measurementName) {
+    performance.clearMeasures(measurementName);
+  }
 }
 
 var ReactDebugTool = {
-- 
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