socket.io-client not working on Android API 34 - iOS works normally (React Native) about socket.io-client HOT 4 CLOSED

Hi! It seems like there is a problem when establishing the SSL connection. Did you find the culprit?

Reference: https://developer.android.com/privacy-and-security/security-config

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For future readers:

Please check our React Native guide: https://socket.io/how-to/use-with-react-native

I'm closing this now, please reopen if needed.

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@darrachequesne I'm experiencing a similar issue on version 4.7.5 (expo 49.0.21). I'm pointing to a non-local api (not on localhost), but the connection never happens successfully.

It works perfectly fine on iOS, but on Android, no connection happens, nor is there an error message. No logs of importance seem to come up when I run expo start in debug mode either.

The socket-io docs you listed above only apply for development right?

When I remove the transports field, it works perfectly fine 🤔

    globalSocket = io(Env.apiUrl, {
      auth: { token },
      transports: ['websocket'],
      ...
    });

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@enaluz plain HTTP or HTTPS? Self-signed certificate?

If it works without transports and not with transports: ['websocket'], then this might indicates that something between the client and the server is preventing the WebSocket connection.

See also: https://socket.io/docs/v4/troubleshooting-connection-issues/

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