blah.js

    const req = fetch(`${ENDPOINT}/permissions`, {
        method: 'POST',
        mode: 'cors',
        headers: {
            Accept: 'application/json',
            'Content-Type': 'application/json'
        },
        body: JSON.stringify(permission)
    });

    req.then((data) => {
        console.log(`${FILE_ID}: create permission request resolved successfully, ${data}`);
    }).catch((err) => {
        console.log(`${FILE_ID}: create permission request failed to resolve, ${err}`);
    });