Browser level Lazyload is a new feature(https://developer.mozilla.org/en-US/docs/Web/Performance/Lazy_loading)for almost all browser.
I wanna test whether the browser supports it, if not then add the polyfill(https://github.com/mfranzke/loading-attribute-polyfill#:~:text=loading%3D%22lazy%22%20attribute%20polyfill,not%20just%20thatfor%20%2D%20SEO%20friendly.) for it.
How can I achieve it? Thank you.