ActionCable message size limit

[Dave Tapley]

Are there any imposed or technical limits on the size of the message being passed through an ActionCable message?

I have been experimenting using it to send Data URIs, it sort of seems to work*, but I wondered if the community had any thoughts on this kind of madness?

* one notable annoyance: In development ActionCable logs the whole message to the terminal, which get very unwieldy, e.g: https://gist.github.com/dukedave/7a1c2b6780b3de0879b124d43b955238