warp::filters::ws::Message::ping() not functioning

[codesections]

I am attempting to use the code I previously contributed to send WebSocket ping messages, but it does not appear to function.

Specifically, constructing a ping message and then sending it through an existing WebSocket connection does not result in the client receiving that ping.

I am working around the issue by sending text messages as a less-elegant form of a keep-alive ping, but wanted to raise it here—especially given that I contributed the code that doesn't seem to work correctly.

[seanmonstar]

It might be that there is code that specifically ignores sending pings 😆

We should probably add a unit test to tests/ws.rs when fixing this.