InAppBrowser

InAppBrowser

function isFacebookApp() {
    var ua = navigator.userAgent || navigator.vendor || window.opera;
    return (ua.indexOf("FBAN") > -1) || (ua.indexOf("FBAV") > -1);
}

參考網址：

1. http://stackoverflow.com/questions/31569518/how-to-detect-facebook-in-app-browser
2. http://stackoverflow.com/questions/21741841/detecting-ios-android-operating-system
3. 中文解釋 http://jimmysu.logdown.com/posts/290026-inapp-browser-webview-problem