You might want a notification like this at the application level for the sake of consistency. For instance, Gmail's "Loading..." messages will also notify you when you have lost or gained a connection.
Surely consistent messaging and notifications is better for the user. Chrome has a desktop notifications API, but that's only appropriate for certain types of messages, such as receiving a new email. In general, it's probably best to handle messaging at the application level.
Surely consistent messaging and notifications is better for the user. Chrome has a desktop notifications API, but that's only appropriate for certain types of messages, such as receiving a new email. In general, it's probably best to handle messaging at the application level.