HTTP 203 Non-Authoritative Information vs 418 I'm a Teapot
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HTTP 203 (Non-Authoritative Information) is a 2xx Success response, while 418 (I'm a Teapot) is a 4xx Client Error response. 203 indicates that the response payload has been modified by a transforming proxy from the origin server's 200 response. In contrast, 418 means that any attempt to brew coffee with a teapot should result in this error. An April Fools' joke from 1998 that became a beloved part of HTTP culture.
Description
The response payload has been modified by a transforming proxy from the origin server's 200 response.
When You See It
When a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
How to Fix
Check if a proxy is modifying the response. Access the origin directly if you need the original content.
Description
Any attempt to brew coffee with a teapot should result in this error. An April Fools' joke from 1998 that became a beloved part of HTTP culture.
When You See It
As an Easter egg on some websites, or when a server humorously refuses a request.
How to Fix
Use a coffee pot instead of a teapot. Or just enjoy the joke.
Key Differences
203 is a 2xx Success response, while 418 is a 4xx Client Error response.
HTTP 203: The response payload has been modified by a transforming proxy from the origin server's 200 response.
HTTP 418: Any attempt to brew coffee with a teapot should result in this error. An April Fools' joke from 1998 that became a beloved part of HTTP culture.
You encounter 203 when when a proxy or CDN modifies the response body (e.g., adds headers, transforms content).
You encounter 418 when as an Easter egg on some websites, or when a server humorously refuses a request.
When to Use Which
For 203 (Non-Authoritative Information): Check if a proxy is modifying the response. Access the origin directly if you need the original content. For 418 (I'm a Teapot): Use a coffee pot instead of a teapot. Or just enjoy the joke.