The "_ doPostBack" undefined solution appears in the asp.net project on IE 11

Recently, users of our website reported that "_ doPostBack" is not defined in <asp: LinkButton> under IE 11. After some google attempts, they finally learned the reason: ASP. NET may not be able to identify the latest versions of Some browsers, and often regard them as low-level browsers. (That is, JavaScript is not supported .)
See: http://blogs.msdn.com/ B /scott_hanselman/archive/2011/10/28/asp-net-ie10-dopostback-javascript-ff5.aspx
According to the solution provided in this article, I have never been able to solve the problem, so I tried to use a single site as prompted.
Create a new browser file (. browser), so that it matches with the UserAgent of IE11, so that. net framework knows that this is a known browser and can normally output scripts to the client.
Enter the following content in the file and save it.