Save target url on click
Save target url on click

If user clicks a link, save target URL in a cookie.  In case
document.referrer isn't set, we use this url on the next page to make
sure the cookie time is correct.

This is mainly needed when opening links in new tabs, or jumping between
HTTPS and HTTP, both on non-navtiming browsers.

sdgdsffdsfff/boomerang,sdgdsffdsfff/boomerang,FredXue/boomerang,levexis/boomerang,lognormal/boomerang,forcedotcom/kylie,levexis/boomerang,lognormal/boomerang,FredXue/boomerang,forcedotcom/kylie