Axios interceptor to fix PUT (multipart/form-data) requests to a PHP back-end

axios.js

/**
 * Request interceptor that fixes PUT requests for php. >> https://bugs.php.net/bug.php?id=55815
 */
instance.interceptors.request.use((request) => {
    if (request.method === 'put' && request.data instanceof FormData) {
        request.method = 'post';
        request.data.append('_method', 'put');
    }

    return request;
});