Is there a way to 'force' JQM in to thinking that's a specific browser/platform that are being used?

Is there a way to 'force' JQM in to thinking that's a specific browser/platform that are being used?

Hi.

Is there a way to force JQM into believe that the code is executed under another browser/platform than it really is?

An example could be fooling JQM into thinking that it is execution on a 'Retina' display, when it is actually running in Firefox. I know I could use a Proxy, where I can set these 'properties' but if there is a buildin debug/dev mode I could use instead, I would do that.

Kindly regards Ruffio