(function(scope){ 'use strict'; imprint.registerTest("mediaDevices", function(){ return new Promise(function(resolve) { if (!navigator.mediaDevices || !navigator.mediaDevices.enumerateDevices) { return resolve(cd || ""); } navigator.mediaDevices.enumerateDevices() .then(function(devices) { var results = devices.map(function(device){ return device.kind + ":" + device.label + " id = " + device.deviceId; }); return resolve(results.join(",")); }) .catch(function(err) { return resolve(""); }); }); }); })(window);