diff --git a/.github/workflows/html-app-branch_and_pr_build.yml b/.github/workflows/html-app-branch_and_pr_build.yml
index c6c78d61..cadb0ffd 100644
--- a/.github/workflows/html-app-branch_and_pr_build.yml
+++ b/.github/workflows/html-app-branch_and_pr_build.yml
@@ -12,11 +12,11 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Install
-        run: yarn install
+        run: npm install
       - name: Build
-        run: yarn build
+        run: npm run build
       - name: Test
-        run: yarn test
+        run: npm run test
 #  Sample CI for react apps
   react:
     defaults:
diff --git a/legacy/karma.conf.js b/legacy/karma.conf.js
index d5f06567..059b8104 100644
--- a/legacy/karma.conf.js
+++ b/legacy/karma.conf.js
@@ -56,7 +56,7 @@ module.exports = function (config) {
 
     // start these browsers
     // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-    browsers: ['jsdom'],
+    browsers: ['ChromeHeadless', 'jsdom'],
 
     // Continuous Integration mode
     // if true, Karma captures browsers, runs the tests and exits
diff --git a/legacy/package.json b/legacy/package.json
index ed618418..58fc79af 100644
--- a/legacy/package.json
+++ b/legacy/package.json
@@ -13,7 +13,7 @@
   "scripts": {
     "start": "webpack-dev-server --progress --port 8085",
     "debug": "webpack-dev-server -d --progress",
-    "test": "karma start --debug --single-run --browsers jsdom",
+    "test": "karma start --debug --single-run",
     "test-watch": "karma start --debug",
     "build": "mkdir dist && webpack --progress --mode=development",
     "integration-test": "yarn build && rm -rf integration && cp -r dist integration && cp -r data integration",