is it possible to change the url when a modal opens

Hi there, 
I am currently using your module right now and am wondering if it supports this

I want my url to change when I open a modal, and when users paste in the url, they will return to the page with the modal open.  

I want to accomplish what the author does in the link below.
https://lingohub.com/blog/2015/06/bootstrap-modal-window-custom-url-angularjs/
