How to Leverage Browser Caching using .htaccess ? (Google Maps api)

Question

So I have tested my page via Googles Page Insights And it is currently telling me to:

Leverage browser caching for the following cacheable resources: http://maps.google.com/maps/api/js?sensor=false&language=en (30 minutes)

Its rather ironic as its a google resource from a google server But Its always good to know how to do things I've tried to read about how to do this on a link google provided on the test page however it didn't really give an example of how to cache this external resource I've tried reading as much as I can and adding bits into my htaccess file but nothing seems to work.

So I guess my question firstly is, is it even possible via the .htaccess file to cache this resouce? And if so how what code would I need to put in there to get it to cache the resource?

Thanks you In advance for any help.

Answer 1

You can't control the caching of resources served from third party. htaccess is to control caching for resources served out of your own boxes.