Function corsEnabled

Picviewer CE+/Picviewer CE+.user.js:138–148

(url)

  }

  function corsEnabled(url) {
    var xhr = new XMLHttpRequest(); // use sync to avoid popup blocker

    xhr.open('HEAD', url, false);

    try {
      xhr.send();
    } catch (e) {}

    return xhr.status >= 200 && xhr.status <= 299;
  } // `a.click()` doesn't work for all browsers (#465)


  function click(node) {