Promisify function, could not work executed in wrong context(this)

test.js

const _promiseFn = fn => {
    return function promisified(...args) {
        const self = this; // promisification if performance critical
        return new Promise((resolve, reject) => {
            const cbFn = (error, result) => {
                if (error) {
                    return reject(new Error(error));
                }

                if (result && false === result.success) {
                    return reject(new Error(result.message));
                }
                return resolve(result);
            };
            args.push(cbFn);

            fn.apply(self, args); // call with arguments
        });
    };
};