Cache 204 - No content

## 💬 Questions and Help

If I understand the code correctly currently only 200 and 202 status codes are added to the cache.

https://github.com/Baseflow/flutter_cache_manager/blob/c7881776325441f3900277499615981c40d12284/flutter_cache_manager/lib/src/web/web_helper.dart#L23-L24

In my case I have a image API endpoint which *tries* to generate a image/logo/etc. based on a user-provided website URL. Since the user input could just as well be an internal URL or just broken, it is perfectly fine for the endpoint to return a 404 response. Right now this is not cached on the client side but requested every time.

Is this the intended behavior, or any way to cache non-existent URLs?

Read lib/src/web/web_helper.dart at the linked lines to confirm which HTTP status codes are currently cached. Clarify whether the requested behavior covers 204, 404, or other non-success responses, then verify that the selected behavior prevents repeated requests for the reported image API case.

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