var displayMediaStreamConstraints = {
    video: true // currently you need to set {true} on Chrome
};

if (navigator.mediaDevices.getDisplayMedia) {
    navigator.mediaDevices.getDisplayMedia(displayMediaStreamConstraints).then(success).catch(error);
} else {
    navigator.getDisplayMedia(displayMediaStreamConstraints).then(success).catch(error);
}

var displayMediaStreamConstraints = {
    video: {
        width: screen.width,
        height: screen.height,
        displaySurface: 'monitor', // monitor or window or application or browser
        logicalSurface: true,
        frameRate: 30,
        aspectRatio: 1.77,
        cursor: 'always', // always or never or motion
    }
};

if (navigator.mediaDevices.getDisplayMedia) {
    navigator.mediaDevices.getDisplayMedia(displayMediaStreamConstraints).then(success).catch(error);
} else {
    navigator.getDisplayMedia(displayMediaStreamConstraints).then(success).catch(error);
}