file_bug1777572.html

Enable keyboard shortcuts

<!DOCTYPE html>

<html>

<head>

    <meta http-equiv="Content-Security-Policy" content="img-src https://*;">

    <script>

      async function timeout (cmd) {

        const timer = new Promise((resolve, reject) => {

          const id = setTimeout(() => {

            clearTimeout(id)

            reject(new Error('Promise timed out!'))

          }, 750)

})

        return Promise.race([cmd, timer])

      let ourOpener = window.opener;

      if (location.search.includes("close")) {

        window.close();

      document.addEventListener('DOMContentLoaded', async () => {

        const frame = document.createElementNS('http://www.w3.org/1999/xhtml', 'frame');

        const image = document.createElementNS('http://www.w3.org/2000/svg', 'image');

        document.documentElement.appendChild(frame)

        image.setAttribute('href', 'a.png')

        for (let i = 0; i < 5; ++i) {

          try { await timeout(image.decode()) } catch (e) {}

        let w = window.open();

        // Need to run SpecialPowers in the newly opened window to avoid

        // .wrap throwing because of dead objects.

        let csp = w.eval("SpecialPowers.wrap(document).cspJSON;");

        ourOpener.postMessage(csp, "*");

        w.close();

        if (!location.search.includes("close")) {

          window.close();

})

    </script>

</head>

</html>