On some user profile pages, we get the following error when opeing the "Recent posts and comments" tab for the first time.
YAHOO.widget.TabView is not a constructor
Therefore, when the tab is opened firstly, UserRecentPostsModule.js is not loaded and the second and subsequent pages of the tab can't be displayed.
This error occurs in init.combined.js, and the difference from normal user pages is whether or not the globalEval method in the js file is activated.
The globalEval method is not activated on the proper user pages. We haven't investigated how the method is activated.
It would be great if you could work on the research and correction.