Use the AccessLint App for GitHub.
Accessibility warnings for dynamic web content.
Include the javascript in your page before </body>.
<script defer src="https://cdn.accesslint.com/a11y-logger-0.1.0.js"></script>Then, run your acceptance tests to get accessibility warning logs, or open your browser and get automatic warnings in the JavaScript console.
accesslint.js runs assertions from the aXe-core accessibility library.
$ bin/setup
$ yarn build