Middleware broken

[zurez]

A clear and concise description of what the bug is.
My websocket middleware is broken. It was working in 9.3

To Reproduce

`import { websocketActionTypes } from '../action-types/websocket.action-types';
import { TypeSocket } from 'typesocket';
import { MiddlewareAPI } from 'redux';
interface MessageModel {
type: string;
}
export const createSocketMiddleware = (url: string, isServer: boolean) => {
return (store: MiddlewareAPI<any, any>) => {
if (isServer) {
return (next: (action: any) => void) => (action: any) => {
return next(action);
};
}
const socket = new TypeSocket(url, { maxRetries: 0 });

	socket.on('connected', () =>
		store.dispatch({ type: websocketActionTypes.WS_CONNECTED }),
	);
	socket.on('disconnected', () =>
		store.dispatch({ type: websocketActionTypes.WS_DISCONNECTED }),
	);
	socket.on('message', message =>
		store.dispatch({
			type: websocketActionTypes.WS_MESSAGE,
			payload: message,
		}),
	);
	socket.connect();

	return (next: (action: any) => void) => (action: any) => {
		if (
			action.type &&
			action.type === websocketActionTypes.WS_SEND_MESSAGE &&
			socket.readyState === 1
		) {
			socket.send(action.payload);
		}

		return next(action);
	};
};

};
`
Steps to reproduce the behavior, please provide code snippets or a repository:

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2. Click on '....'
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4. See error

Expected behavior

A clear and concise description of what you expected to happen.

Screenshots

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System information

• OS: [e.g. macOS, Windows]
• Browser (if applies) [e.g. chrome, safari]
• Version of Next.js: [e.g. 6.0.2]
• Version of Node.js: [e.g. 10.10.0]

Additional context

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