Test metadata.

{"name":"unclebobmartin","about":"Uncle Bob, Software Craftsman. http://cleancoder.com","picture":"https://pbs.twimg.com/profile_images/1102364992/clean_code_72_color_400x400.png"}

Test, send to write only relay.

test (sent to two relays)

test

test2

test

Dear "wss://freedom-relay.herokuapp.com/ws" you are sending "PING" in text, not as a ping. At least the Java WebSocket framework is not seeing it as a true ping.