How do I send custom parameters to the *axios* interceptor? I am using an interceptor like this:

```
window.axios.interceptors.request.use(function (config) {
    if (PASSED_PARAM == true) {
        doSomethingAwesome();
    }

    return config;
}, function (error) {    
    return Promise.reject(error);
});

```

I also have a response interceptor that needs to receive the same parameter.