Use HTTP 413 status code for RequestDataTooBig

[Milan Oberkirch]

Other HTTP servers (e.g. Apache, Nginx) report a body which is to large with the status code 413 "Payload Too Large".

I propose to do the same in Django when handling a RequestDataTooBig exception in ​https://github.com/django/django/blob/f931cbec21cce3e2e68239c77614e6aa5026b882/django/core/handlers/exception.py#L63

This makes the behavior of a typical stack consisting of a reverse proxy and a Django project predictable for this type of error.

I can work on a patch if this change is acceptable to you.

[Natalia Bidart]

Following ​https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/413 I think the request makes sense.

I haven't found a previous report about this and the code that added some handling for RequestDataTooBig may have missed to return a more specific code. Tangential follow up of #27820.

[kokobhara]

Hello,

Is this issue still active?
I'm new to both Django and contributing to open-source, and would be more than excited to work on a patch that fixes this.

[Milan Oberkirch]

Feel free to take over! Also note this comment: ​https://github.com/django/django/pull/17960#pullrequestreview-1926197306