From e405ca9f0365de045347bb3b3d0f35d09d295660 Mon Sep 17 00:00:00 2001
From: Demetrio Girardi <dgirardi@prebid.org>
Date: Thu, 4 Apr 2024 11:35:24 -0700
Subject: [PATCH] Build system: fix source maps (#11293)

* Build system: fix source maps

* Update webpack.conf.js

* turn off webpack optimization for unit tests
---
 karma.conf.maker.js | 3 +--
 webpack.conf.js     | 8 +++++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/karma.conf.maker.js b/karma.conf.maker.js
index e05d5b08afd..7b8ca13b20b 100644
--- a/karma.conf.maker.js
+++ b/karma.conf.maker.js
@@ -15,8 +15,7 @@ function newWebpackConfig(codeCoverage, disableFeatures) {
     mode: 'development',
     devtool: 'inline-source-map',
   });
-
-  delete webpackConfig.entry;
+  ['entry', 'optimization'].forEach(prop => delete webpackConfig[prop]);
 
   webpackConfig.module.rules
     .flatMap((r) => r.use)
diff --git a/webpack.conf.js b/webpack.conf.js
index 8d29c786595..c74ac5c2b32 100644
--- a/webpack.conf.js
+++ b/webpack.conf.js
@@ -133,10 +133,16 @@ module.exports = {
         const nodeModules = path.resolve('./node_modules');
 
         return Object.assign(libraries, {
+          common_deps: {
+            name: 'common_deps',
+            test(module) {
+              return module.resource?.startsWith(nodeModules);
+            }
+          },
           core: {
             name: 'chunk-core',
             test: (module) => {
-              return module.resource?.startsWith(core) || module.resource?.startsWith(nodeModules);
+              return module.resource?.startsWith(core);
             }
           },
           paapi: {