API Error 500 when using field "user" | OpenAI | Page 1

Steps to reproduce:
Set up a Chat Completion API request with the following payload:

{
    "model": "gpt-4o",
    "messages": [
      {
        "role": "user",
        "user": "foo",
        "content": [
          {
            "type": "text",
            "text": "What’s in this image?"
          },
          {
            "type": "image_url",
            "image_url": {
              "url": "https://images.ctfassets.net/kftzwdyauwt9/1ZTOGp7opuUflFmI2CsATh/df5da4be74f62c70d35e2f5518bf2660/ChatGPT_Carousel1.png",
              "detail": "high"
            }
          }
        ]
      }
    ],
    "max_tokens": 300
  }

When executed, this request will return a error 500.
This error only occours when the parameter user is set.

Bonus problem: the example on this page for nodejs: https://platform.openai.com/docs/guides/vision?lang=node has a typo, there is an extra " at "detail": "low"

#API Error 500 when using field "user"