Is jquery UI is getting loaded when sourcing fro Google Ajax cdn?

As has been discussed at breadth in many a forum, it is recommended to use Google's CDN for loading common js libraries. I am doing the same in my app and am loading jquery and jquery-ui from the Google cdn.

Now there have been quite a few instances where users have reported broken UI and that is a result of jquery ui not firing. e开发者_StackOverflow社区.g. jquery UI tabs/progress bars not working. Now I am wondering why this is happening and most probable reason seems to be jqueryui not getting downloaded properly from Google CDN.

Has anyone faced similar issues before? How to ensure that juqeryui is initialized/ready for each user?

There are some fallback solutions (for jQuery proper) in this answer that may be helpful. This one in particular.