steal.js not loading resources in order on ie 9

HI,
my web application is made using javacriptmvc newest version(3,3). It works well on newest browsers (chrome, firefox, ie10 and ie11),but
not working on ie9.It seams , that the resources are lauded not in order.

Example:

steal ('./aaa.js', '/bbb.js, function(){ 
     //do the main things
});

so the IE9 starting to do the main things even the aaa.js and bbb.js are not loaded.Tried to debug, files aaa and bbb even not started to be implemented by js engine.
But with other versions it works nice.

So I appreciate for any help, because I must run this application on IE9..

Minde.