Facebook Tab Application Metadata
I am creating a Facebook iFrame tab application that features weekly interviews and uses a CMS to manage the interview content. I would like to be able to post a link to my newsfeed that points to the application tab and will show a preview with metadata in the newsfeed. Currently, there is no metadata showing up and it is just a blank link. How can I get Facebook to show a preview of the link to the application tab, the same as it would show a preview of a link to any 开发者_JS百科website when posting to my newsfeed?
I know this was asked a long time ago but I figured I'll share more details on how I went about solving this issue:
Facebook does not read metadata from iFrame or application tabs. In other words, when you share a link of a Facebook tab, Facebook will override the meta data values of the iFrame page with the Page’s default ones. In order to work around this limitation, you can set up a redirect page with custom open graph meta tags. Here is how:
Create a redirect page called redirect.php with meta data information:
<html> <head> <title>Name of App</title> <meta property="og:title" content="" /> <meta property="og:description" content="" /> <meta property="og:image" content="" /> <meta property="og:url" content="" /> <!-- This is a page redirect --> <meta HTTP-EQUIV="REFRESH" content="0; url=URL_OF_FACEBOOK_APP"> </head> </html>Use Facebook URL Linter to scrape page (https://developers.facebook.com/tools/debug) Enter the address of your app’s root URL.
Use Google Shortner and enter the address of the redirect.php that you set up. http://goo.gl/
Now you can share the new Google Shortner link
Facebook doesn't read metadata from your iframed tab, but you can set up a redirect page with custom Open Graph meta tags as described in the Facebook Developers Forum here: http://forum.developers.facebook.net/viewtopic.php?id=96146
UPDATE 2012.05.20: forum.developers.facebook.net has been replaced by facebook.stackoverflow.com. The link I provided no longer works, but there are some helpful related threads on the new forum:
- http://facebook.stackoverflow.com/questions/8407013/open-graph-information-for-a-link-to-a-page-tab
- http://facebook.stackoverflow.com/questions/7197919/how-can-i-301-redirect-a-page-in-the-open-graph-and-retain-facebook-like-informa
- http://facebook.stackoverflow.com/questions/6053657/open-graph-pages-can-i-use-a-stub-forwarding-page
加载中,请稍侯......
精彩评论