Trigger refresh for new media manager in 3.5
The correct way of refreshing the content of the frame, as found in the WP core, is as below: if(wp.media.frame.content.get()!==null){ wp.media.frame.content.get().collection.props.set({ignore: (+ new Date())}); wp.media.frame.content.get().options.selection.reset(); }else{ wp.media.frame.library.props.set({ignore: (+ new Date())}); } You should always check of the content is available, else refresh the library. Cheers!