[ORCID API] POST REQUEST TO TAKE TOKEN USING FETCH JS

[Francisco Godinho Neto]

Hello, i am trying to take any acess token using the fetch library (javascript), but i don't know how to configure the header request.

My code:

The error:

[Angel Montenegro]

Hi Francisco, 

I'm Angel, tech lead at ORCID! I'm not familiar with the fetch library, however, I'm wondering why the mode is set to 'cors'? This is not a cross origin call, is a simple http request, so, I think this should work:

```

fetch('https://orcid.org/oauth2/token', {

method: 'POST',

body: formBody,

headers: {

'Content-Type': 'application/x-www-form-urlencoded'

}

});

```

Please let me know how it goes, thanks!

Thanks