我的網站只適用於IE8及更高版本。 如何限制使用開發人員工具向用戶使用版本更改? 有沒有辦法限制使用JQuery的?如何限制我的網站只能使用IE8及更高版本
這是我的javascript來查找用戶代理的瀏覽器模式和文檔模式,但我不限制用戶將瀏覽器和文檔模式更改爲IE7。
<script type="text/javascript">
/*
* Author: Rob Reid
* CreateDate: 20-Mar-09
* Description: Little helper function to return details about IE 8 and its various compatibility settings either use as it is
* or incorporate into a browser object. Remember browser sniffing is not the best way to detect user-settings as spoofing is
* very common so use with caution.
*/
$(function(){
var browserInfo = IEVersion();
console.log($('meta'));
alert(browserInfo.DocMode);
$('meta').attr('rel','IE=7');
});
function IEVersion()
{
var _n = navigator, _w = window, _d = document;
var version = "NA";
var na = _n.userAgent;
var ieDocMode = "NA";
var ie8BrowserMode = "NA";
// Look for msie and make sure its not opera in disguise
if (/msie/i.test(na) && (!_w.opera))
{
// also check for spoofers by checking known IE objects
if (_w.attachEvent && _w.ActiveXObject)
{
// Get version displayed in UA although if its IE 8 running in 7 or compat mode it will appear as 7
version = (na.match(/.+ie\s([\d.]+)/i) || [])[1];
// Its IE 8 pretending to be IE 7 or in compat mode
if (parseInt(version) == 7)
{
// documentMode is only supported in IE 8 so we know if its here its really IE 8
if (_d.documentMode)
{
version = 8; //reset? change if you need to
// IE in Compat mode will mention Trident in the useragent
if (/trident\/\d/i.test(na))
{
ie8BrowserMode = "Compat Mode";
// if it doesn't then its running in IE 7 mode
} else
{
ie8BrowserMode = "IE 7 Mode";
}
}
} else if (parseInt(version) == 8)
{
// IE 8 will always have documentMode available
if (_d.documentMode) { ie8BrowserMode = "IE 8 Mode"; }
}
// If we are in IE 8 (any mode) or previous versions of IE we check for the documentMode or compatMode for pre 8 versions
ieDocMode = (_d.documentMode) ? _d.documentMode : (_d.compatMode && _d.compatMode == "CSS1Compat") ? 7 : 5; //default to quirks mode IE5
}
}
return {
"UserAgent": na,
"Version": version,
"BrowserMode": ie8BrowserMode,
"DocMode": ieDocMode
}
}
function DisplayInfo()
{
var browserInfo = IEVersion();
alert('UserAgent: ' + browserInfo.UserAgent + '\nVersion: ' + browserInfo.Version + '\nBrowserMode: ' + browserInfo.BrowserMode + '\nDocMode: ' + browserInfo.DocMode);
}
如果您已經在使用jQuery,爲什麼不使用類似jquery.browser插件? – mishik
你不能,只是在一個非常明顯的地方寫下「這只是用ie8或更高版本來查看」的消息,任何你試圖繞過的東西 – jsedano
如果你已經在使用jQuery,爲什麼不使用類似的東西jquery.browser插件 –