Regular visitors to the uncharted backwaters of the unfashionable end of the Internet that is my blog may be aware that I use WordPress as a blogging platform. Those visitors who come here via a browser on a phone may even be aware that WordPress automagically presents a mobile friendly version of the site. This magic happens because of the user-agent string your browser sends to the web server hosting my blog; this string tells the web server what sort of browser (and more importantly what sort of device) is trying to view my blog. If WordPress sees a user-agent string like this ...