From b7b3eeb143d05232008a5f77503f051dc06dff6f Mon Sep 17 00:00:00 2001
From: Kenn Jacobsen <kja@vertica.dk>
Date: Tue, 4 May 2021 13:40:35 +0200
Subject: [PATCH] Do not change function and class names when minifying JS
 (#10223)

---
 src/Umbraco.Web.UI.Client/gulp/tasks/js.js       | 7 ++++++-
 src/Umbraco.Web.UI.Client/gulp/util/processJs.js | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/Umbraco.Web.UI.Client/gulp/tasks/js.js b/src/Umbraco.Web.UI.Client/gulp/tasks/js.js
index bab6239a09..bfe02e858e 100644
--- a/src/Umbraco.Web.UI.Client/gulp/tasks/js.js
+++ b/src/Umbraco.Web.UI.Client/gulp/tasks/js.js
@@ -19,12 +19,17 @@ function js() {
     var stream = new MergeStream();
 
     var task = gulp.src(config.sources.globs.js);
+    // NOTE: if you change something here, you probably also need to change it in the processJs util
     if (config.compile.current.minify === true) {
       task = task.pipe(
         minify({
           noSource: true,
           ext: { min: '.min.js' },
-          mangle: false
+          mangle: false,
+          compress: {
+            keep_classnames: true,
+            keep_fnames: true
+          }
         })
       );
     } else {
diff --git a/src/Umbraco.Web.UI.Client/gulp/util/processJs.js b/src/Umbraco.Web.UI.Client/gulp/util/processJs.js
index e0bff8827f..98b1c23343 100644
--- a/src/Umbraco.Web.UI.Client/gulp/util/processJs.js
+++ b/src/Umbraco.Web.UI.Client/gulp/util/processJs.js
@@ -36,12 +36,17 @@ module.exports = function (files, out) {
     
     task = task.pipe(concat(out)).pipe(wrap('(function(){\n%= body %\n})();'))
 
+    // NOTE: if you change something here, you probably also need to change it in the js task
     if (config.compile.current.minify === true) {
       task = task.pipe(
         minify({
           noSource:true,
           ext: {min:'.min.js'},
-          mangle: false
+          mangle: false,
+          compress: {
+            keep_classnames: true,
+            keep_fnames: true
+          }
         })
       );
     } else {