From 0a71129dc12af0d18c1188aebccb8310a128dbf7 Mon Sep 17 00:00:00 2001
From: Ger Hobbelt <ger@hobbelt.com>
Date: Tue, 18 Jun 2019 19:55:02 +0200
Subject: [PATCH] fix crash in url util function due to undefined root value:
 `sourceRoot` is checked everywhere using `!= null` except in 1(one) spot,
 which caused a crash in my test set, while debugging indexed map issues with
 the origin API.

---
 lib/source-map-generator.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/source-map-generator.js b/lib/source-map-generator.js
index 8111e061..5f51a6c5 100644
--- a/lib/source-map-generator.js
+++ b/lib/source-map-generator.js
@@ -71,7 +71,7 @@ class SourceMapGenerator {
     });
     aSourceMapConsumer.sources.forEach(function(sourceFile) {
       let sourceRelative = sourceFile;
-      if (sourceRoot !== null) {
+      if (sourceRoot != null) {
         sourceRelative = util.relative(sourceRoot, sourceFile);
       }