fix: Stop running polyfill tests in Chrome; they fail because of its native implementation

.github/workflows/publish.yml

@@ -24,7 +24,7 @@ jobs:
           node-version: 22
           registry-url: https://registry.npmjs.org/
           cache: npm
-      - run: npm ci --legacy-peer-deps
+      - run: npm ci
       - run: npm version ${TAG_NAME} --git-tag-version=false
         env:
           TAG_NAME: ${{ github.event.release.tag_name }}

.github/workflows/test.yml

@@ -16,5 +16,5 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: 22
-      - run: npm ci --legacy-peer-deps
-      - run: npm test
+      - run: npm ci
+      - run: npm test

package.json

@@ -17,14 +17,15 @@
   },
   "files": [],
   "scripts": {
-    "test": "web-test-runner",
+    "test": "npx playwright install firefox && web-test-runner",
     "test:guidepup": "npx playwright test"
   },
   "devDependencies": {
     "@esm-bundle/chai": "^4.3.4-fix.0",
     "@guidepup/guidepup": "^0.24.0",
     "@guidepup/playwright": "^0.14.1",
     "@playwright/test": "^1.48.0",
-    "@web/test-runner": "^0.20.1"
+    "@web/test-runner": "^0.20.1",
+    "@web/test-runner-playwright": "^0.11.1"
   }
-}
+}

web-test-runner.config.js

@@ -1,7 +1,15 @@
+import { playwrightLauncher } from '@web/test-runner-playwright';
+
 export default {
   files: "tests/web-test-runner/*.test.html",
   coverage: true,
   nodeResolve: true,
+  browsers: [
+    playwrightLauncher({
+      product: 'firefox', // Use Firefox instead of Chrome (web-test-runner’s default), because Firefox doesn’t have a native implementation of 'ariaNotify' (as of 2025-11-07), so we can test the polyfill in it.
+      launchOptions: { headless: true }
+    }),
+  ],
   plugins: [
     {
       name: "include-polyfill",