Is it possible to set an Edge Cache TTL or some other caching mechanism for a large .js file and .css file to cache when it is served to my site via an iframe with a src that is on another domain that I only have limited control over (e.g. I cannot change cache header settings on that other domain).
So, for example, there is a file
main.js that is being served through an iframe with
src="some_other_domain.com" which is an iframe on “my_domain.com”
Is this possible with cloudflare? My goal is to improve Google Core Web Vitals with regard to their recommendation to “Serve static assets with an efficient cache policy”. The two files are just over 2MB and served every time the page loads, so should be good caching candidates.