HTTP 204 No Content vs 522 Connection Timed Out
HTTP 204 (No Content) is a 2xx Success response, while 522 (Connection Timed Out) is a 5xx Server Error response. 204 indicates that the server successfully processed the request but is not returning any content. Common for DELETE operations and form submissions that don't need a response body. In contrast, 522 means that cloudflare-specific. TCP connection to the origin server timed out.
説明
The server successfully processed the request but is not returning any content. Common for DELETE operations and form submissions that don't need a response body.
このコードが表示される場合
After DELETE requests, PUT updates where no body is needed, or CORS preflight responses.
解決方法
No fix needed. The action was successful; there is simply no content to return.
説明
Cloudflare-specific. TCP connection to the origin server timed out.
このコードが表示される場合
When the origin server is overloaded or network issues prevent connection.
解決方法
Check origin server health. Verify firewall rules. Check for network congestion.
主な違い
204 is a 2xx Success response, while 522 is a 5xx Server Error response.
HTTP 204: The server successfully processed the request but is not returning any content. Common for DELETE operations and form submissions that don't need a response body.
HTTP 522: Cloudflare-specific. TCP connection to the origin server timed out.
You encounter 204 when after DELETE requests, PUT updates where no body is needed, or CORS preflight responses.
You encounter 522 when when the origin server is overloaded or network issues prevent connection.
どちらをいつ使うか
For 204 (No Content): No fix needed. The action was successful; there is simply no content to return. For 522 (Connection Timed Out): Check origin server health. Verify firewall rules. Check for network congestion.