304 Not Modified
Your cached copy is still good. The reward for sending If-None-Match.
304Redirection
- What it means
- Your cached copy is still good. The reward for sending If-None-Match.
- In practice
- 304 is not an error — it is caching working. The client sent If-None-Match (an ETag) or If-Modified-Since, and the server is saying “what you have is current, no body needed”. If you are debugging “why is my change not showing”, a 304 in the network tab means the browser asked and was told nothing changed: check what ETag the server computes, or hard-reload to bypass the conditional request.
- Whose problem is it?
- Nobody — the resource is elsewhere, and the client is being told where.