From 169bb09576e93804cfa275ffcf3941417a4e177b Mon Sep 17 00:00:00 2001
From: Yuri Kuznetsov <yurikuzn@users.noreply.github.com>
Date: Mon, 27 Jun 2022 11:40:17 +0300
Subject: [PATCH] strip source mapping url

---
 js/scripts/prepare-lib-original.js | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/js/scripts/prepare-lib-original.js b/js/scripts/prepare-lib-original.js
index 6f0306c632..1650351f80 100644
--- a/js/scripts/prepare-lib-original.js
+++ b/js/scripts/prepare-lib-original.js
@@ -47,12 +47,31 @@ fs.readdirSync(originalLibDir)
 /** @var {string[]} */
 const libSrcList = buildUtils.getBundleLibList(libs);
 
+let stripSourceMappingUrl = path => {
+    /** @var {string} */
+    let originalContents = fs.readFileSync(path, {encoding: 'utf-8'});
+
+    let re = /\/\/\# sourceMappingURL.*/dg;
+
+    if (!originalContents.match(re)) {
+        return;
+    }
+
+    let contents = originalContents.replaceAll(re, '');
+
+    fs.writeFileSync(path, contents, {encoding: 'utf-8'});
+}
+
 libSrcList.forEach(src => {
     let dest = originalLibDir + '/' + src.split('/').slice(-1);
 
     fs.copyFileSync(src, dest);
+    stripSourceMappingUrl(dest);
 });
 
 buildUtils.getCopyLibDataList(libs)
     .filter(item => item.minify)
-    .forEach(item => fs.copyFileSync(item.src, item.originalDest))
+    .forEach(item => {
+        fs.copyFileSync(item.src, item.originalDest);
+        stripSourceMappingUrl(item.originalDest);
+    });