Good Apps but not work with geth private network

[timcheuk]

Good Apps but it is not able to connect geth because a additional parameter

The App sent
{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":67}
It response
{"jsonrpc":"2.0","id":67,"error":{"code":-32602,"message":"too many arguments, want at most 0"}}

Geth accept this tested by POSTMAN
{"jsonrpc":"2.0","method":"eth_blockNumber","id":67}
it response correct response
{
"jsonrpc": "2.0",
"id": 67,
"result": "0xe3a"
}

Finally, it is a great improvement if users can custom network ID.