JS how to judge, including IE11, ie browser < reprint >

Today encountered a strange problem, there is a page, want to specify to open with IE browser, in the VS development environment no problem, but deployed to the server, even if it is open with IE page, or prompt "only support ie", really dizzy Ah!!

To determine whether IE browser is window.navigator.userAgent, tracking this information, found in the development environment, identified as IE10, but the access server is recognized as IE11, but IE11 useragent there is no MSIE flag, the reason is this.

The method of judging IE browser can be changed as follows.

The code is as follows:

function Isie () {//ie?
if (!! Window. ActiveXObject | | "ActiveXObject" in window)
return true;
Else
return false;
}

JS how to judge, including IE11, ie browser < reprint >