From 0491ec04d219ae97759266d4ad8e2fdd101a8dec Mon Sep 17 00:00:00 2001
From: Michael Mok <pmmmwh@gmail.com>
Date: Mon, 7 Feb 2022 02:05:54 +0100
Subject: [PATCH] fix: ensure compile error is parsed correctly

Fixes #571
---
 overlay/components/CompileErrorTrace.js | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/overlay/components/CompileErrorTrace.js b/overlay/components/CompileErrorTrace.js
index efd684c9..4d67c9c1 100644
--- a/overlay/components/CompileErrorTrace.js
+++ b/overlay/components/CompileErrorTrace.js
@@ -20,16 +20,15 @@ ansiHTML.setColors(theme);
 function CompileErrorTrace(document, root, props) {
   const errorParts = props.errorMessage.split('\n');
   if (errorParts.length) {
-    const errorMessage = errorParts
-      .splice(1, 1)[0]
-      // Strip filename from the error message
-      .replace(/^(.*:)\s.*:(\s.*)$/, '$1$2');
-
     if (errorParts[0]) {
       errorParts[0] = utils.formatFilename(errorParts[0]);
     }
 
-    errorParts.unshift(errorMessage);
+    const errorMessage = errorParts.splice(1, 1)[0];
+    if (errorMessage) {
+      // Strip filename from the error message
+      errorParts.unshift(errorMessage.replace(/^(.*:)\s.*:(\s.*)$/, '$1$2'));
+    }
   }
 
   const stackContainer = document.createElement('pre');