User-service can not handle plaintext return from password reset api

[KancerEzeroglu]

handleResponse fails while processing successfull response.

function reset_password(email) {
    const requestOptions = {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: email
    };

    return fetch('/api/account/reset_password/init', requestOptions).then(handleResponse);
}