Unity 5.6 SetCursor is no longer working

I’ve been using SetCursor with CursorMode.Auto but after unity 5.6 it doesn’t work in the build but works in the editor. Did you guys change something because I can’t find anything diferent in the documentation?

CursorMode.Auto: cursor doesn’t change
CursorMode.ForceSoftware: cursor doesn’t change, custom cursor appears under the normal cursor

this behaviour is the same on Chrome, Mozilla and Edge

It is indeed not working in 5.6.
Made a bug report and you can follow it’s resolution under Unity Issue Tracker - [WebGL] custom cursor is not shown (which will be public in a few hours).