[zbentley]

> Returning 4xx on a client error isn't hard and is usually handled largely by your framework of choice.

> Your argument is a strawman

That's....super not true. Malformed requests with gibberish (or, more likely, hacker/pentest- generated) headers will cause e.g. Django to return 5xx easily.

That's just the example I'm familiar with, but cursory searching indicates reports of similar failures emitted by core framework or standard middleware code for Rails, Next.js, and Spring.

[laeri]

If input validation is not present in your framework of choice then the framework clearly has problems.

If you do not validate your inputs properly I am not sure what you are doing when you have a user facing applications of this size. Validating inputs is the lowest hanging fruit for preventing hacking threats.

[jabradoodle]

Usually handled by the framework, you may have to write some code, I'd expect my saas provider to write code so that I know whether their service is available or not.