I changed the page elements loaded judge way, instead of the Imageloaded.
1) Please clean the cache of safari: visit the page(it is theme js file) by safari, refresh the link 2-3 times. Make sure the js file is updated(not use safari cache)
2) Visit the page( http://18.104.22.168/wordpress/aside/?page_id=473 ) by safari, click one thumbnail and go back
3) Let me know the result please