How do I test the Facebook "Like" button on localhost?

It is possible to test "Like" button on localhost?

How does the Facebook like button work?

When a user clicks the like button, the content appears in the News Feeds of that user's friends. The button also displays the number of users who liked each piece of content, and may show a full or partial list of those users.

Not really; facebook has to crawl your site to pull in the title, description, and thumbnail. It can't get to your site if it's on localhost.

Dave's answer is correct, however, I just discovered a workaround: You can make your local machine accessible by using http://localtunnel.me . You'll need to (temporarily) change some URLs used in your app code / html so links point to the temporary domain, but at least facebook can reach your machine.