html5页面资源预加载（Link prefetch）

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html>
<head>
    <base >

    <title></title>

    <script>
        function bro(){
//            var is360 = false;
            //application/vnd.chromium.remoting-viewer 可能为360特有
            var is360 = _mime("type", "application/vnd.chromium.remoting-viewer");
            var isIE = false;
            var isFirefox = false;
            var isCrome = false;
            var broName = '';
            if(window.navigator.userAgent.indexOf('MSIE')!=-1&&window.navigator.appName.indexOf("Microsoft") != -1){
                isIE = true;
                broName = 'IE';
                alert(ie)
            }
            if(window.navigator.userAgent.indexOf('Firefox')!=-1){
                isFirefox = true;
                broName = 'Firefox';
                alert(firefox)
            }
            if(window.navigator.userAgent.indexOf('Chrome')!=-1){
//                if(window.navigator.webkitPersistentStorage){
//                    isCrome = true;
//                    broName = 'Chrome';
//                }else if(_mime()){
//                    is360 = true;
//                    broName = '360';
//                }

                if(is360){
                  //  is360 = true;
                    broName = '360';
                    alert("360")
                }else if(_mime() && !is360){
                    isCrome = true;
                    broName = 'Chrome';
                    alert("chrome");
                }
            }

            document.getElementById('broType').value=broName;

        }

        //测试mime
        function _mime(option, value) {
            var mimeTypes = navigator.mimeTypes;
            for (var mt in mimeTypes) {
                if (mimeTypes[mt][option] == value) {
                    return true;
                }
            }
            return false;
        }
    </script>
</head>

<body onload="bro();">
<input type="text" id="broType" name="broType">
</body>
</html>

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posted @ 2018-07-27 11:04  yaomengli  阅读(1020)  评论(0)  编辑  收藏  举报