HTTP 101 Switching Protocols vs 404 Not Found
HTTP 101 (Switching Protocols) is a 1xx Informational response, while 404 (Not Found) 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, 404 means that the server cannot find the requested resource. The URL may be wrong, the resource may have been deleted, or it may never have existed.
Beschreibung
The server understands the Upgrade header field request and indicates which protocol it is switching to.
Wann Sie es sehen
When upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
Wie man es behebt
This is normal behavior during protocol upgrades. Ensure your client supports the target protocol.
Beschreibung
The server cannot find the requested resource. The URL may be wrong, the resource may have been deleted, or it may never have existed.
Wann Sie es sehen
When a URL is mistyped, a page has been deleted, or an API endpoint doesn't exist.
Wie man es behebt
Verify the URL is correct. Check for typos, case sensitivity, and trailing slashes.
Wesentliche Unterschiede
101 is a 1xx Informational response, while 404 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 404: The server cannot find the requested resource. The URL may be wrong, the resource may have been deleted, or it may never have existed.
You encounter 101 when when upgrading from HTTP/1.1 to WebSocket, or to HTTP/2.
You encounter 404 when when a URL is mistyped, a page has been deleted, or an API endpoint doesn't exist.
Wann welchen verwenden
For 101 (Switching Protocols): This is normal behavior during protocol upgrades. Ensure your client supports the target protocol. For 404 (Not Found): Verify the URL is correct. Check for typos, case sensitivity, and trailing slashes.