// Detect whether this browser is IE var isNotIE = function isIE () { var userAgent = window.navigator.userAgent.toLowerCase(), appName = window.navigator.appName; return !( appName === 'Microsoft Internet Explorer' || // IE <= 10 (appName === 'Netscape' && userAgent.indexOf('trident') > -1) ); // IE >= 11 }; // If the browser is not IE, and it meets the minimum system requirements for the OpenTok platform, // then create your app if (isNotIE() && OT.checkSystemRequirements()) { var session = OT.initSession('your apiKey', 'your sessionId'); // ... continue with your OpenTok application }