AWS lightsail instance, websocket connection not working

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I am using AWS lightsail to host my webapp. Even though I opened the ports in the firewall, it is not possible to etablish a websocket connection. What could be the reason?

1 Answer
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Accepted Answer

Found the issue. The firewall works fine. The problem was that I use cookies for authentication and the cookie was not created, since I have set it to "Secure", but didn't use an SSL certificate.

answered a year ago

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