Item backdrop image after update gone

[JayJayZ]

It didn't change anything. Is there a way to get the ID of the currently displayed movie or series via JS script?

The movie ID is located in the URL when you're browsing it in the Web UI.

It's quite obvious, but Javascript doesn't have access to the browser's address bar from the script (haha).
I noticed a certain relationship - in the desktop version of the page (1), the DIV marked with the class and id "itemBackdrop" is empty, but in the mobile version (2) it already contains the proper backdrop
Is it restricted for mobiles? If so, how do I change it so that it is displayed the same way on computer version of website?