Can service workers cache POST requests?

Question

I tried to cache a POST request in a service worker on fetch event.

I used cache.put(event.request, response), but the returned promise was rejected wit

Answer 1

According to https://w3c.github.io/ServiceWorker/#cache-put (point 4).

        if(request.method !== "GET") {
            return Promise.reject('no-match')
        }