testing pa11y with new config

.github/workflows/content_scan.yml

@@ -25,7 +25,10 @@ jobs:
         shell: bash
         run: npm install
 
-      - name: Build eleventy and run cypress
+      - name: Build eleventy and run pa11y-ci
+        run: npm run pa11y-ci:gh
+
+      - name: Run cypress
         run: npm run cypress:gh
 
       - name: cypress-artifacs

.pa11yci.js

@@ -0,0 +1,11 @@
+module.exports = {
+  defaults: {
+    concurrency: 1,
+    // We're ignoring iframe elements because they're not used on the site, yet
+    // DAP inserts an iframe into the DOM, and that iframe causes pa11y errors.
+    hideElements: "iframe",
+    chromeLaunchConfig: {
+      args: ["--no-sandbox"]
+    },
+  },
+};