try {
window.__getIEVersion = function() {
var userAgent = window.navigator.userAgent;
var isIE = userAgent.indexOf('compatible') > -1 && userAgent.indexOf('MSIE') > -1;
var isEdge = userAgent.indexOf('Edge') > -1 && !isIE;
var isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf('rv:11.0') > -1;
if (isIE) {
var reIE = new RegExp('MSIE (\\d+\\.\\d+);');
reIE.test(userAgent);
var fIEVersion = parseFloat(RegExp["$1"]);
if (fIEVersion == 7) {
return 7;
} else if (fIEVersion == 8) {
return 8;
} else if (fIEVersion == 9) {
return 9;
} else if (fIEVersion == 10) {
return 10;
} else {
return 6;
}
} else if (isEdge) {
return 'edge';
} else if (isIE11) {
return 11;
} else {
return -1;
}
}
var ieVersion = __getIEVersion();
window.__lessIEVersion = function(version) {
if (ieVersion !== -1 && ieVersion !== 'edge') {
return ieVersion < version;
}
return false;
}
if (window.__lessIEVersion(11)) {
window.locations.href = '/update';
}
} catch (e) {
window.__pre_error = e;
}网站首页
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