Pass body through JSON.stringify

[iansinnott]

Hey, thanks for writing this.

I think there may be a bug when encoding a request body. fetch doesn't like being passed an object literal for body but the generated fetch request is passed the object directly.

Some example output might look like this:

fetch('https://api.example.com/api/v2/resource', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
    },
    body: JSON.stringify({"key": "vslue"})
});

This online tool seems to be doing what I'm referring to: https://curl.trillworks.com/#browser