EADDRINUSEEADDRINUSE — Address Already in Use
The network address (IP + port) is already being used by another process.
CORS: Preflight request failedThe CORS preflight OPTIONS request was rejected by the server.
Before sending certain cross-origin requests (with custom headers, non-simple methods, etc.), the browser sends a preflight OPTIONS request. The server did not respond with the correct CORS headers.
Ensure the server handles OPTIONS requests and returns proper CORS headers. Add Access-Control-Allow-Methods and Access-Control-Allow-Headers headers. Configure CORS middleware to handle preflight requests.
EADDRINUSEThe network address (IP + port) is already being used by another process.
EPIPEWriting to a connection that the other end has already closed.
ERR_SSL_OBSOLETE_VERSIONThe server only supports TLS versions that are considered obsolete and insecure.
ENETUNREACHThe network hosting the destination cannot be reached.
ERR_ABORTEDThe network request was cancelled before completion.
ERR_FAILEDA network request failed for a reason not covered by more specific error codes.