Too much data exceeds websocket packet size limit and overflows json string.

[mitchellblaser]

We're going to need to re-imagine the handshake so that we can send multiple diff list chunks.

[mitchellblaser]

Two options here - we either increase the limit in server config (easier), or we re-write some of the protocol (more annoying)...

For one competition it may be totally fine, it's not like you're storing years worth of data in there.