Question

Is there any way to detect the browser features like History API, localStorage, etc on first request received from client on server so that I could customize the response page data as per the browser features?

I know how to do it while page is loaded(I do it using Modernizr JS library).

Answer 1

You could set a cookie on the first page load. If said cookie does not exist, check for features. Pseudo:

if(feature_cookies_does_not_exist) {
   check_for_features()
   create_feature_cookie()
}