ECONNREFUSEDECONNREFUSED — Connection Refused
The server actively refused the connection attempt.
ERR_BLOCKED_BY_RESPONSEThe browser blocked the response due to CORB, CORP, or other response-based security policies.
Cross-Origin Read Blocking (CORB), Cross-Origin Resource Policy (CORP), or Cross-Origin-Embedder-Policy (COEP) is blocking the response. The server's security headers prevent the resource from being loaded.
Add Cross-Origin-Resource-Policy: cross-origin header for shared resources. Set proper CORP headers on the server. Check COEP requirements. Review CORB restrictions for JSON/HTML responses.
ECONNREFUSEDThe server actively refused the connection attempt.
ERR_SSL_PROTOCOL_ERRORAn error occurred during the SSL/TLS protocol exchange.
NXDOMAINThe DNS server reports that the domain name does not exist.
certificate_unknownThe server's certificate could not be verified for an unknown reason.
ERR_ADDRESS_UNREACHABLEThe target IP address or hostname cannot be reached from the browser.
ERR_CONNECTION_REFUSEDThe browser's connection attempt was actively refused by the server.