HTTP 101 Switching Protocols vs 408 Request Timeout
HTTP 101 (Switching Protocols) is a 1xx Informational response, while 408 (Request Timeout) is a 4xx Client Error response. 101 indicates that the server understands the Upgrade header field request and indicates which protocol it is switching to. In contrast, 408 means that the server timed out waiting for the request. The client did not produce a request within the time the server was prepared to wait.
説明
The server understands the Upgrade header field request and indicates which protocol it is switching to.
このコードが表示される場合
When upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
解決方法
This is normal behavior during protocol upgrades. Ensure your client supports the target protocol.
説明
The server timed out waiting for the request. The client did not produce a request within the time the server was prepared to wait.
このコードが表示される場合
When a client takes too long to send the complete request (slow upload, network issues).
解決方法
Retry the request. Check your network connection. Reduce request payload size.
主な違い
101 is a 1xx Informational response, while 408 is a 4xx Client Error response.
HTTP 101: The server understands the Upgrade header field request and indicates which protocol it is switching to.
HTTP 408: The server timed out waiting for the request. The client did not produce a request within the time the server was prepared to wait.
You encounter 101 when when upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
You encounter 408 when when a client takes too long to send the complete request (slow upload, network issues).
どちらをいつ使うか
For 101 (Switching Protocols): This is normal behavior during protocol upgrades. Ensure your client supports the target protocol. For 408 (Request Timeout): Retry the request. Check your network connection. Reduce request payload size.