Is there a way of saving and restoring the cache in Chrome or other web browsers?

A typical way of handling a problem with a website is "it's not working, try refresh to update the cache". That's great, but then when you do work to make sure that the cache is invalidated correctly, it's difficult to check because you've already updated the cache.

Is there a way of saving the cache in a browser, e.g. Chrome and restoring it to that state at a later date? That would allow you to restore your browser to the initial conditions before the refresh and check it all works smoothly.