polyfilled fetch behaves differently from node's builtin fetch and browser's fetch

[marko154]

What version of Remix are you using?

1.18.1

Are all your remix dependencies & dev-dependencies using the same version?

• Yes

Steps to Reproduce

When using a Request object to call fetch, a DELETE request with body is sent without the body. ky builds a request to call fetch, which is how I found this. Looks like the problem might be in the remix-run/web-std-io library, because this works using web-std/io.

const options = {
    method: "DELETE",
    body: "some json here"
}

// this works
fetch(url, options)

const request = new Request(url, options)
// this does not send the body
fetch(request)

Here is a codesandbox reproduction.

Expected Behavior

Fetch should behave the same way using

fetch(url, options)

const request = new Request(url, options)
fetch(request)

Actual Behavior

When calling fetch with a Request object, a DELETE request with a body is sent without the body.

[juandjara]

I can reproduce this behaviour too. Use case is I'm making an app that comunicates with github and need to do a request to Github API with a DELETE method and a request body in the delete file contents endpoint