Laravel Echo and Socket IO transfer polling 404 ERR_CONNECTION_CLOSED in loop

Question

I'm building a website using Laravel Echo Server, Socket IO and Redis. The problem I'm facing is that everything works locally but not on my VPS server.

When the user enters a view that requires Socket IO, a 404 loop will occur. https://example.com:6001/socket.io/?EIO=4&transport=polling&t=O0DofMO net::ERR_CONNECTION_CLOSED

On FireFox I can see this error, described in more detail

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Answer 1

Seems to be working now.

I configured laravel-echo-server.json to work over HTTPS.

This makes event broadcasting work again, but channel authentication does not.

So I changed the way Socket.IO is imported:

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to

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These changes worked.

Please note that removing the channel default prefix helps a lot.