makeRemoteExecutableSchema isn't behaving like the docs

[lucasavila00]

As kind of reported on #798 when building a custom fetcher the behavior isn't like in the docs.
Currently the docs seem to assume that the query is a string, when it is in fact a DocumentNode.
The typescript types are correct, by the way.

A workaround is to print the document node before calling your custom fetcher.

This is the affected part of the docs

Using the workaround we'd get:

...
import { print } from "graphql/language/printer";
...
        body: JSON.stringify({ query: print(query), variables, operationName })

I'm using the latest version (3.0.5).
As I'm confused about the correct behavior I won't submit a PR.
I'm waiting to check with you if the docs are mistaken of the implementation is wrong.
Thanks!

[wansj]

I have this problem too. It seems that the document is outdated.Thanks for your workaround.

[hwillson]

This was addressed by #933. Thanks!