Can an action return a body and redirect at the same time?

[wvhulle]

The documentation does mention in https://kit.svelte.dev/docs/routing#page-actions that it is possible to add a redirect to the return of a POST action:

return {
    location: url
};

However, what if you would like to return a body and a redirect at the same time? When I have to return a body I use new Response(String(body)) but adding the location as in new Response(String(body), {headers: {location: url}}) doesn't give a functioning redirect. How can I do both at the same time?

[vekunz]

I am not sure what use case such a thing could be helpful for. If you return a redirect, every browser and most HTTP clients will automatically follow this redirect. You will likely never see the return body everywhere.
Besides that, it would be semantically wrong. A 302/303 HTTP return code indicates, that the result of your query is somewhere else and not here.

[wvhulle]

Okay, so it is one of both return types. Not at the same time.

[vekunz]

Yes, either you return a 2xx/4xx/5xx status code with a body, or you return a 3xx status code with a location header.