Reputation: 4906
Could anyone tell me, how does Facebook (and some other sites) extract a sector of a site whose URL we provide in a form. Usually they extract a multimedia content and some title. For instance regarding Youtube video urls, it extracts the video thumbnail and the video title. As far as I'm concerned, that is done by executing an Ajax request and using an interceptor which parses the html content.
Can anyone help me to clarify this functionality?
Upvotes: 0
Views: 300
Reputation: 3095
Take a look at http://developers.facebook.com/docs/opengraph here is the documentation of what you want to know.
Upvotes: 1