diff --git a/.github/workflows/browser_test.yml b/.github/workflows/browser_test.yml
index 330c104d6..414dd721b 100644
--- a/.github/workflows/browser_test.yml
+++ b/.github/workflows/browser_test.yml
@@ -51,7 +51,10 @@ jobs:
         if: runner.os == 'macOS'
         run: source ./tests/scripts/setup_osx_env.sh
 
-      - name: Run
+      - name: Run Build
+        run: npm run build
+
+      - name: Run Test
         run: npm run test:browser
 
         env:
diff --git a/tests/browser/test/basic_block_factory_test.js b/tests/browser/test/basic_block_factory_test.js
index c56834095..7e726f314 100644
--- a/tests/browser/test/basic_block_factory_test.js
+++ b/tests/browser/test/basic_block_factory_test.js
@@ -10,6 +10,8 @@
 
 const webdriverio = require('webdriverio');
 const chai = require('chai');
+const path = require('path');
+const {posixPath} = require('../../../scripts/helpers');
 
 let browser;
 suite('Testing Connecting Blocks', function (done) {
@@ -44,7 +46,12 @@ suite('Testing Connecting Blocks', function (done) {
     }
     // Use Selenium to bring up the page
     const url =
-      'https://blockly-demo.appspot.com/static/demos/blockfactory/index.html';
+      'file://' +
+      posixPath(
+        path.join(__dirname, '..', '..', '..', 'demos', 'blockfactory')
+      ) +
+      '/index.html';
+    console.log(url);
     console.log('Starting webdriverio...');
     browser = await webdriverio.remote(options);
     console.log('Loading URL: ' + url);
diff --git a/tests/browser/test/basic_playground_test.js b/tests/browser/test/basic_playground_test.js
index fa634940b..f70ada8a8 100644
--- a/tests/browser/test/basic_playground_test.js
+++ b/tests/browser/test/basic_playground_test.js
@@ -10,6 +10,8 @@
 
 const webdriverio = require('webdriverio');
 const chai = require('chai');
+const path = require('path');
+const {posixPath} = require('../../../scripts/helpers');
 
 let browser;
 suite('Testing Connecting Blocks', function (done) {
@@ -43,7 +45,11 @@ suite('Testing Connecting Blocks', function (done) {
       options.capabilities['goog:chromeOptions'].args.push('--disable-gpu');
     }
     // Use Selenium to bring up the page
-    const url = 'https://blockly-demo.appspot.com/static/tests/playground.html';
+    const url =
+      'file://' +
+      posixPath(path.join(__dirname, '..', '..')) +
+      '/playground.html';
+    console.log(url);
     console.log('Starting webdriverio...');
     browser = await webdriverio.remote(options);
     console.log('Loading URL: ' + url);