JungYOsup

@dufia > I run into this issue where `sockets.current[namespaceKey]` can be `undefined` in ioProvider.tsx, I am referring to https://github.com/nitedani/socket.io-react-hook/blob/main/packages/socket.io-react-hook/src/IoProvider.tsx#L89. > > Although it was semi reliably take place in my...