From ba56471d5eb036ab930caac9e3fa4471da59b8ab Mon Sep 17 00:00:00 2001
From: Andrey Los <puha212@gmail.com>
Date: Thu, 13 Sep 2018 20:43:15 +0200
Subject: [PATCH] - Fix for thread.loader case in formatWebpackMessages that
 prevents error messages from mistakenly clearing out.

---
 packages/react-dev-utils/formatWebpackMessages.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/react-dev-utils/formatWebpackMessages.js b/packages/react-dev-utils/formatWebpackMessages.js
index f1506298cbb..5f07f7765ad 100644
--- a/packages/react-dev-utils/formatWebpackMessages.js
+++ b/packages/react-dev-utils/formatWebpackMessages.js
@@ -52,7 +52,7 @@ function formatMessage(message, isError) {
   });
 
   if (threadLoaderIndex !== -1) {
-    lines = lines.slice(0, threadLoaderIndex);
+    lines.splice(threadLoaderIndex, 1);
   }
 
   lines = lines.filter(function(line) {