https://betstop.gov.au/browser-check.js

1(function (window, document) {
2  function isLocalStorageAvailable() {
3    var test = 'test';
4    try {
5      localStorage.setItem(test, test);
6      localStorage.removeItem(test);
7      return true;
8    } catch (e) {
9      return false;
10    }
11  }
12
13  var supportedBrowserRegex =
14    /Edge?\/(10[89]|1[1-9]\d|[2-9]\d{2}|\d{4,})(\.\d+|)(\.\d+|)|Firefox\/(10[89]|1[1-9]\d|[2-9]\d{2}|\d{4,})\.\d+(\.\d+|)|Chrom(ium|e)\/(10[89]|1[1-9]\d|[2-9]\d{2}|\d{4,})\.\d+(\.\d+|)|Maci.+ Version\/(16\.([1-9]|\d{2,})|(1[7-9]|[2-9]\d|\d{3,})\.\d+)([,.]\d+|)( Mobile\/\w+|) Safari\/|(CPU[ +]OS|iPhone[ +]OS|CPU[ +]iPhone|CPU IPhone OS|CPU iPad OS)[ +]+(16[._]([1-9]|\d{2,})|(1[7-9]|[2-9]\d|\d{3,})[._]\d+)([._]\d+|)|Android:?[ /-](109|1[1-9]\d|[2-9]\d{2}|\d{4,})(\.\d+|)(\.\d+|)|Android.+Chrom(ium|e)\/(1{2}\d|1[2-9]\d|[2-9]\d{2}|\d{4,})\.\d+(\.\d+|)|SamsungBrowser\/(1[89]|[2-9]\d|\d{3,})\.\d+/;
15
16  var htmlWrapper = document.getElementById('browserCheck');
17
18  var dismissUnsupportedBrowserMessage = function () {
19    htmlWrapper.innerHTML = '';
20
21    if (isLocalStorageAvailable()) localStorage.setItem('hideMessage', 'true');
22  };
23
24  // If not supported
25  if (!supportedBrowserRegex.test(navigator.userAgent)) {
26    // If localStorage supported and has been hidden, do nothing
27    if (isLocalStorageAvailable() && localStorage.getItem('hideMessage') === 'true') return;
28
29    htmlWrapper.innerHTML =
30      '<div class="unsupportedBrowser"><div class="inner"><div><img src="/warning.svg" class="warning" /><span>We have detected that your web browser may not be supported or is out of date. <a href="/supported-browsers/">Find out more</a></span></div><button id="clearUnsupportedBrowserMessageButton">Dismiss <img src="/close.svg" alt="dismiss browser warning" /></button></div>';
31
32    document
33      .getElementById('clearUnsupportedBrowserMessageButton')
34      .addEventListener('click', dismissUnsupportedBrowserMessage);
35  }
36})(window, document);