1419902.html - mozsearch

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  <head>

    <script>

      // Note that despite what it looks like this test does leave windows open

      // after the test finishes. That's because some of the window.open calls

      // trigger an exception but still open a window. Because of the

      // exception, winsToClose.push is not executed and we have no reference

      // to the window. So far there is no known way to get a reference to it.

      // It was also tried to give each opened windowed a named target, save

      // that list of targets, and use window.open("", targetname) to get a

      // reference to the window. That also doesn't work because either the

      // window.open calls never end and this page never loads, or if it does

      // load after a finite time then still some windows are left open for

      // some reason.

      var winsToClose = []

      onbeforeunload = function() {

        for (let win of winsToClose) {

          if (win) {

            win.close();

};

      for (let i = 0; i < 38; i++) {

        customElements.define("custom-element_0", class extends HTMLElement {

          constructor() {

            try { o1 = document.createElement("custom-element_0") } catch (e) {}

            try {

             if (winsToClose.length < 20) {

               // The test used to rely on dom.popup_maximum == 20.

               winsToClose.push(window.open("javascript:'<html><body>dummy</body></html>';"));

            } catch (e) {}

})

        try { o3 = document.createElement("custom-element_0") } catch (e) {}

    </script>

  </head>

</html>