How can I send larger messages over WebSocket?

Question

I am developing a WebSocket server with C# and I noticed that all the messages that coming from the browser (Chrome in that case) using the send() method are 126 chars lengt

Answer 1

I know for a fact that you can send messages larger than 126 characters,
I am able to send data over protobuf that contains strings that themselves contain 126 characters. http://www.websocket.org/echo.html
If you look at this website you can test out your messages. (Note this does not use fragments)