formData empty on console.log

[yukirivero]

I am implementing File inputs in my form. When I try to send data to my backend it is empty. I am using the CDN version.

// Handle submit event.
const formData = new FormData()

        this.questions.forEach(question => {
            formData.append(question.id, question.answer)
        })
        console.log(formData)
        
        fetch('server-formdata.php', {
            method: 'POST',
            body: formData
        })