问题
Update: Read the comments to the item marked as the answer below for the full answer.
I am implementing a Like button from Facebook per this document: http://developers.facebook.com/docs/reference/plugins/like
I am using the XFBML version so that users can add comments when they click on the Like button. I have imported the Facebook JavaScript SDK an am using a valid App ID. The button appears and I am able to "Like" the page, but I am never prompted for comments.
Is anybody else running into these issues? Anybody know of a fix?
回答1:
Before I had inserted the correct appId in the FB.init() call to initialize the Facebook javascript SDK, the button appeared, I was able to "Like" the page like you, but saw no comment box either.
When I inserted the appId, but hosted the page locally, I got an error message saying that the page could not be reached (from Facebook's servers).
Finally, hosting the page on a public server made the buttons behave as expected: with comment box for the XFBML version, and without comment box for the Iframe.
Hope that helps...
回答2:
add this style and the comment box will be hidden after you click like.
.fb_edge_widget_with_comment span.fb_edge_comment_widget iframe.fb_ltr {
display: none !important;
}
回答3:
retailevovled is right. I've just found this tutorial which is a bit more detailed (German, but you can use Google Translate): http://www.be24.at/blog/entry/639312
回答4:
Create an app for this specific implementation, then it will work: http://developers.facebook.com/setup/
(I too first used an 'old' app-id with the same problems you described.)
来源：https://stackoverflow.com/questions/2688836/facebook-like-button-xfbml-comment-not-working