I have a worker and a domain which has been managed on Cloudflare. The 3rd-level subdomain like “a.domain.com” worked well and the webpage of the work could be shown up correctly. But when I tried to use a 4th-level subdomain like “b.a.domain.com”, it didn’t work and the browser returned a message like:
An error occurred during a connection to b.a.domain.com. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: SSL_ERROR_NO_CYPHER_OVERLAP
The route of my worker has set to “b.a.domain.com/*” and there has been a DNS CNAME record “b.a” to “myworker.workers.dev”. The proxy status may not affect the result because I had tried DNS proxied and DNS only but both of them didn’t work.
What’s wrong with my settings, or if workers don’t support 4th-level subdomains? Thank you for any reply!