Browser version that is not fully supported

When I send a post request the site return this http://i.prntscr.com/vcVwEoA9SsKKeiXtJZ__2g.png
I use chrome UserAgent btw

Thanks in advance

The HTML view does not trigger javascript code (it would be extremely unsafe) so that’s why you get that, it thinks that the browser does not support js. Please in this case just use the source code that you receive and don’t make use of the HTML view.