test/e2e/resources/console/context-selector.html

<!DOCTYPE html>
<meta charset="utf-8">
<body>
<script>
  function setup() {
    window.worker = new Worker('./worker-pause.js');
    window.iframe = document.createElement('iframe');
    window.iframe.src = 'context-selector-inner.html';
    window.iframe.name = 'myframe';
    document.body.appendChild(window.iframe);
    return new Promise(f => window.iframe.onload = f);
  }

  function pauseInWorker() {
    window.worker.postMessage('pause');
  }

  function pauseInIframe() {
    window.iframe.contentWindow.eval('debugger;');
  }

  function pauseInMain() {
    debugger;
  }
</script>
</body>