HTTP 101 Switching Protocols vs 500 Internal Server Error
HTTP 101 (Switching Protocols) is a 1xx Informational response, while 500 (Internal Server Error) is a 5xx Server Error response. 101 indicates that the server understands the Upgrade header field request and indicates which protocol it is switching to. In contrast, 500 means that the server encountered an unexpected condition that prevented it from fulfilling the request. A generic catch-all for server-side errors.
Descripción
The server understands the Upgrade header field request and indicates which protocol it is switching to.
Cuándo lo verás
When upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
Cómo solucionarlo
This is normal behavior during protocol upgrades. Ensure your client supports the target protocol.
Descripción
The server encountered an unexpected condition that prevented it from fulfilling the request. A generic catch-all for server-side errors.
Cuándo lo verás
When an unhandled exception occurs, a database connection fails, or server code has a bug.
Cómo solucionarlo
Check server logs for the stack trace. Common causes: unhandled exceptions, database errors, misconfigurations.
Diferencias clave
101 is a 1xx Informational response, while 500 is a 5xx Server Error response.
HTTP 101: The server understands the Upgrade header field request and indicates which protocol it is switching to.
HTTP 500: The server encountered an unexpected condition that prevented it from fulfilling the request. A generic catch-all for server-side errors.
You encounter 101 when when upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
You encounter 500 when when an unhandled exception occurs, a database connection fails, or server code has a bug.
Cuándo usar cada uno
For 101 (Switching Protocols): This is normal behavior during protocol upgrades. Ensure your client supports the target protocol. For 500 (Internal Server Error): Check server logs for the stack trace. Common causes: unhandled exceptions, database errors, misconfigurations.