cy.intercept is always returning an empty body

[james-begg]

I'm trying to intercept a locally served asset on an Angular project - simple config.json file. Doing a simple:
cy.intercept('GET', '**/assets/config/config.json', (req) => console.log(req.body)); gives me a null response, despite the fact that it recognises the request being sent, and the headers are there.

Here is the console log from this - no body despite there being a JSON recieved.

As you can see the request is being recieved

Does anyone know why this empty body is being returned and not the JSON file?