I need to use views with querystring for language so it can be cached properly:

code:
this.element.html(

this.view('myview.mustache?lang=en', { myvar : 'value' })

);

but it appends .ejs to the view and obviously fails:

myview.mustache?lang=en.ejs

i figured using "myview.mustache?lang=en&f=.mustache" does the trick, but it is so ugly it makes my eyes bleed.

Is there a way to not append ejs extension without monkeypatching the core?