Saving the game can take longer. There’s already a message which states whether the saving process has been sucessful or not. But we rather don’t want to sit down and wait until the saving process is finished. That way we could miss the “save game”-message easily, because it is self-closing.
Therefore, I would like to suggest a static message for reporting the last saving result containing a time stamp and “success” or “failed” as a message. The time stamp should use the client’s system time, if possible.
By the way:
Is it requiered to have an active browser window for successfully saving the game? I’m not quite sure about this.