title: In-browser geolocation feature: how can I prompt the user to reenable after they've denied it?
body: <p>Similar to <a href="https://stackoverflow.com/questions/13370203/allow-to-use-geolocation-for-a-website-for-which-i-previously-refused-it">this question</a>, but in my case I am the web developer. How can I get the browser to ask the user again if they want to allow geolocation?  I was hoping I could put some text in the page, something like, <em>"This page's features are only available when geolocation services are active, but you have denied them for this site. Click here to try again."</em></p>
  
  <p>I know how to change the browser to accept this, but how do I help the visitors to the page from any browser to simply turn it on at the click of a button.</p>