问题
The content within the app is being updated using XHR. This involves changing the URL of the comment box:
<div class="fb-comments" data-href="http://example.com?id=[dynamic]" data-num-posts="2" data-width="470"></div>
Upon creating a new Facebook widget placeholder after the page been fully loaded, how do I request Facebook JS SDK to render new elements on the page?
回答1:
Call the JavaScript SDK's FB.XFBML.parse(); function after you dynamically insert the fb-comments div.
See: http://developers.facebook.com/docs/reference/javascript/FB.XFBML.parse/
来源：https://stackoverflow.com/questions/9454896/how-to-force-facebook-js-sdk-to-render-dynamically-added-widgets