[x iJailBreak x]

There's no screenshot to show - all it does is add an additional header on output that sends an early resource hint. It's used to allow your user's browsers to connect faster to assets in order to speed up the browsing experience. It's not a huge difference, but it's something that's starting to be implemented across the internet as a best practise.

It's key to note that the order of assets does matter, and this should only really be implemented if you understand how it works.