It seems this is working solution that shows how to work with $httpBacked http://jsfiddle.net/EgMpe/8/
$httpBacked
But for my case:
routes<
Ah.. Sorry I just was wrong with my RegEx:
if type this $httpBackend.whenGET(/partials/).passThrough();
$httpBackend.whenGET(/partials/).passThrough();
Then all start working.
So, I got my lesson: don't forget to put: passThrough(); with right RegEx.