Using the ResponseCache policy responsibly! (or, Don't cache POST requests)

I am posting this just to document a link to a solution provided 4Mv4D in youtube.

HYG: https://www.youtube.com/watch?v=XS93EZYYbTU&list=PLsWqc60hQz4cP2SOZkMM9Gwri25uICZzj&index=7