The canSave prop was being passed to the editor view, but needs to also be passed to the player view because it is used to decide whether to connect the viewer to cloud variables. People cannot connect to cloud variables after entering editor mode on anothers project.
This does not implement any further design, like showing a confirmation popover, but just makes sure the button works. I used a very slim package to implement copy that does not include any fallbacks for IE, since we do not need to support that here.
