Have you successfully connected a project on your platform to a LINE OA via Webhook? I've seen previous error reports regarding LINE's SSL certificate verification issues. I just ran an SSL Labs test and found that it's returning an old certificate. Can you address this?
Issue: LINE Webhook Verify persistent SSL error Domain: df-n8n.zeabur.app Host: Hetzner Singapore Dedicated Server (Server ID: server-69ceaf82...)
SSL Labs Test Results: Certificate #1 (with SNI): Normal, ZeroSSL, Trusted Certificate #2 (No SNI): Zeabur Pte. Ltd. self-signed certificate, NOT TRUSTED, Alternative names INVALID
Conclusion: When the client connects without SNI, the server returns a self-signed certificate, causing the LINE server's SSL verification to fail. Please fix the No-SNI fallback certificate configuration.
Full SSL Labs Report: https://www.ssllabs.com/ssltest/analyze.html?d=df-n8n.zeabur.app