From 53a7e342e9583651d343869a781b3bbde7424af2 Mon Sep 17 00:00:00 2001
From: Andrey Lushnikov <lushnikov@chromium.org>
Date: Thu, 20 Feb 2020 17:06:05 -0800
Subject: [PATCH] fix(testrunner): support throwing non-errors

---
 utils/testrunner/SourceMapSupport.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/utils/testrunner/SourceMapSupport.js b/utils/testrunner/SourceMapSupport.js
index ae8933c55e..2cabccc005 100644
--- a/utils/testrunner/SourceMapSupport.js
+++ b/utils/testrunner/SourceMapSupport.js
@@ -27,6 +27,8 @@ class SourceMapSupport {
   }
 
   async rewriteStackTraceWithSourceMaps(error) {
+    if (!error.stack || typeof error.stack !== 'string')
+      return;
     const stackFrames = error.stack.split('\n');
     for (let i = 0; i < stackFrames.length; ++i) {
       const stackFrame = stackFrames[i];