How to set up dredd to ignore headers in the assertion - openapi

Question

I am using Dredd to test one of my endpoints. I think the test is failling due to the headers, because I'm getting the following expected:
headers:
Content-Type: application/json
body:
[
{
"id": 15107,
"name": "Route Name",
"date": "2022-01-27T09:00:00",
"full_user_name": "Test Admin",
"url": "api/2/users/1/routes/15107"
}
]
statusCode: 200
And the following actual:
statusCode: 200
headers:
date: Wed, 02 Feb 2022 12:54:11 GMT
server: WSGIServer/0.2 CPython/3.6.9
content-type: application/json; charset=utf-8
vary: Accept, Cookie
allow: GET, POST, PATCH, HEAD, OPTIONS
access-control-allow-origin: None
access-control-allow-methods: POST,GET
access-control-allow-headers: Origin,Content-Type,Accept,Accept-Encoding
access-control-allow-credentials: true
x-frame-options: SAMEORIGIN
content-length: 136
bodyEncoding: utf-8
body:
[
{
"id": 15107,
"name": "Route Name",
"date": "2022-01-27T09:00:00",
"full_user_name": "Test Admin",
"url": "api/2/users/1/routes/15107"
}
]
The only difference I see is the headers. Is there any way to ignore those? Like, for instance, content-length header. Maybe I only need to include the auth header in the Open API file. Right now I have specified documentation as follows:
...
securitySchemes:
ApiKey:
type: apiKey
name: Authorization
in: header
description: Authentication token
security:
- ApiKey: []
And running dredd as follows with a python server:
dredd oas-routes.yaml http://127.0.0.1:8000/api/2/users/1/routes --header="Authorization: Token 6b232e1c00bbc8b12d0066a483bf401009fbdb21"
Any idea how to do this correctly? I'm quite new to testing with dredd to be honest.