The name of the controller can also be a relative path. But to make it uniform (just like with images) you should be able to add a / in front of the name/path. It currently doesn't support that. This fix resolves that for controllers,models and collections, and adds to the documentation it can also be a relative path.
An example why this should be supported is because it is consistent for everything. Image names/paths with a leading / on Android is even required, and a controller name/path with a leading / is generating errors. This leads to unexpected issues, and confusion.
This fix makes it consistent:
Consistent behaviour across all names/paths leads to expected functionality. Exceptions make it confusion. This fixes that