Body does not seem properly formated and cors error

[GaryAustin1]

Bug report

The documentation shows calling a function as:

const { data: user, error } = await supabase.functions.invoke('hello', {
  responseType: 'text',
  body: { foo: 'bar' }
})

The function.js code has

const response = await this.fetch(`${this.url}/${functionName}`, {
        method: 'POST',
        headers: Object.assign({}, this.headers, headers),
        body,
      })

I would think at a minimum body should be body:body.
Very strange results occur, but basically content length is string length if {body:'string'} is used in call.
If an object is used {body:{k:'v'}, length is always 15 probably an error message for invalid object or something...

Not sure if it is related. But all calls generate cors errors:

To Reproduce

Follow the instructions for functions invoke in api reference.

Expected behavior

Body should be formatted correctly and no cors error (if not related)

System information

Latest supabase.js

[GaryAustin1]

It appears to use functions.js Edge Functions need more than the sample code shown so far.
I had to add allow headers to the return..
supabase/supabase#6267

[GaryAustin1]

Finally got it all to work:
Seems body: is optional in fetch? BUT the documentation shows passing in an object for body. When I passed in a json string:
body:'{"name":"gary"}' The body gets passed correctly.

Also for the browser to work with function.js I had to deal with an OPTION request and the POST request, both with allow headers like such:

import { serve } from "https://deno.land/std@0.131.0/http/server.ts";

console.log("Hello from Functions!");

serve(async (req) => {
        console.log(req.method)
        if (req.method === 'OPTIONS') {
            return new Response(
                'ok',
                {
                    headers: {
                        "Access-Control-Allow-Origin": "*",
                        "Access-Control-Allow-Methods": "POST",
                        "Access-Control-Expose-Headers": "Content-Length, X-JSON",
                        "Access-Control-Allow-Headers": "apikey,X-Client-Info, Content-Type, Authorization, Accept, Accept-Language, X-Authorization",
                    }
                }
            );
        }
        else {
            const jsonData = await req.json();
            const name = jsonData.name;
            const data = {message: `Hello there ${name}!`};
            return new Response(
                JSON.stringify(data),
                {
                    headers: {
                        "Content-Type": "application/json",
                        "Access-Control-Allow-Origin": "*",
                        "Access-Control-Allow-Methods": "POST",
                        "Access-Control-Expose-Headers": "Content-Length, X-JSON",
                        "Access-Control-Allow-Headers": "apikey,X-Client-Info, Content-Type, Authorization, Accept, Accept-Language, X-Authorization",
                    }
                }
            );
        }
});

[Thor 雷神 Schaeff]

Thanks @GaryAustin1 I've replied on the other issue: supabase/supabase#6267