You should see a warning in IE11 but not other browsers
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October 5, 2020 16:13
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IE11 warning
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| <!DOCTYPE html> | |
| <html lang="en-us"> | |
| <head> | |
| <meta http-equiv="X-UA-Compatible" content="IE=Edge" /> | |
| <meta charset="UTF-8" /> | |
| <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.2.2/css/bootstrap.min.css" /> | |
| <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.2.2/css/bootstrap-responsive.min.css" /> | |
| </head> | |
| <body> | |
| <div id="container"> | |
| <h1>Demo.</h1> | |
| </div> | |
| <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> | |
| <script type="text/javascript" > | |
| var supportedBrowserCheck = function () { | |
| var isSupportedBrowser = function () { | |
| // not ideal; but <IE12 isn't supported which is primary-goal: | |
| // http://webaim.org/blog/user-agent-string-history/ | |
| var ua = navigator.userAgent.toLowerCase(), | |
| isChrome = ua.indexOf("chrome") > -1, | |
| isFirefox = ua.indexOf("firefox") > -1, | |
| isSafari = ua.indexOf("safari") > -1; | |
| return isChrome || isFirefox || isSafari; | |
| } | |
| if (!isSupportedBrowser()) { | |
| $("#container").prepend( | |
| '<div class="alert">\ | |
| <p><b>Warning:</b> Your current browser has not been tested extensively with this website, which may result in some some errors with functionality. The following browsers are fully supported:</p>\ | |
| <ul>\ | |
| <li><a href="https://www.google.com/chrome/" target="_blank">Google Chrome</a> (preferred)</li>\ | |
| <li><a href="https://www.mozilla.org/firefox/" target="_blank">Mozilla Firefox</a></li>\ | |
| <li><a href="https://www.apple.com/safari/" target="_blank">Apple Safari</a></li>\ | |
| </ul>\ | |
| <p>Please use a different browser for an optimal experience.</p>\ | |
| </div>' | |
| ); | |
| } | |
| } | |
| </script> | |
| <script type="text/javascript" id="browserCheck"> | |
| supportedBrowserCheck(); | |
| </script> | |
| </body> | |
| </html> |
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