Automatically open default email client from button on 7.1

Hi there, 

Is there a way to automatically open default email client with pre-populated content from a button on 7.1?

I'm guessing it may need J query injection, as it won't work by simply adding pre-populated content on email linked button unless there is an email address in the field. But if you want user to share they they'll need 'To:' blank so they can add in email recipient's address themselves. 

Any help appreciated.

Thanks

Marc

Thanks for quick reply. That's sorted it. Appreciate help. 

I've revisited this for another site that is on Fluid, and it no longer seems to work. Is there another workaround for auto-launching a users email browser with a blank mailto: and prefilled subject/body copy so that links to a site's page can be shared with family/friends...?

Thanks

Marc

bumping this one in case anyone has advice! thank you! having same issue as above member