You do have to consider middlebox and client caching when you do this. Returning a 200 with a 'not found' would be cached, and that may or may not be desired for the use case.
That’s I guess an issue for cache header instructions to solve.
With 200 codes being cached you still will have problems like stale data. Wouldn’t want the Target registers using yesterdays prices for today (especially if yesterday was a super sale day like Black Friday etc).
With 200 codes being cached you still will have problems like stale data. Wouldn’t want the Target registers using yesterdays prices for today (especially if yesterday was a super sale day like Black Friday etc).