Yesterday I managed to send my first message to a browser.  Thanks for all your help.

I've tried sending a few different types of messages, and it so far appears to me the only thing I can send to a simple push client is a version number.  Can a simple push client receive anything else other than version numbers?  If so, what does the sender need to do, and what does the client need to do?  (If there is a good example somewhere online I can work from that also.)

My client application (javascript on browser) holds multiple types of data.  It would be nice if I can send a notification saying "there's an update for this data type", rather than just "there's an update".  Or, in general it'd be nice if I can send more information than just a monotonically increasing number. 

Here's my setup:

I read this documentation, but my wishful thinking refused to interpret it as saying: SimplePush variants use the "extra simple-push object" only.

Thank you,

Michi Oshima