`getHeaders` is undefined error in Cloudflare Workers

[mitchellsimoens]

I was implementing this for use in a Cloudflare Worker. For local dev, I was using wrangler. For some reason, I was getting a w.getHeaders is undefined. I traced it down to this block of code:

jwt-auth/index.js

Lines 96 to 105 in 9cd947f

	const form = new FormData();
	form.append('client_id', clientId);
	form.append('client_secret', clientSecret);
	form.append('jwt_token', token);
	const postOptions = {
	method: 'POST',
	body: form,
	headers: form.getHeaders()
	};

I'm wondering if it's because of const FormData = require('form-data'); where FormData is being the JavaScript FormData and not the form-data version as the JavaScript class doesn't have a getHeaders function.

Some debugging I did was added a console.log(form.getHeaders); and that logged out undefined as expected so it's certainly not the form-data one.