Change for getting url from key

app/assets/javascripts/lib/social-share-button.coffee

@@ -9,7 +9,6 @@ window.SocialShareButton =
     img = encodeURIComponent($(el).parent().data("img"))
     fb_url = encodeURIComponent($(el).parent().data("fb_url"))
     url = encodeURIComponent(location.href)
-    fb_full_url = encodeURIComponent("#{fb_url}?orig_host=#{location.host}&orig_path=#{location.pathname}")
     switch site
       when "weibo"
         SocialShareButton.openUrl("http://v.t.sina.com.cn/share/share.php?url=#{url}&pic=#{img}&title=#{title}&content=utf-8")
@@ -18,7 +17,7 @@ window.SocialShareButton =
       when "douban"
         SocialShareButton.openUrl("http://www.douban.com/recommend/?url=#{url}&title=#{title}&image=#{img}")
       when "facebook"
-        SocialShareButton.openUrl("http://www.facebook.com/sharer.php?t=#{title}&u=#{fb_full_url}")
+        SocialShareButton.openUrl("http://www.facebook.com/sharer.php?t=#{title}&u=#{fb_url}")
       when "qq"
         SocialShareButton.openUrl("http://sns.qzone.qq.com/cgi-bin/qzshare/cgi_qzshare_onekey?url=#{url}&title=#{title}&pics=#{img}")
       when "tqq"