said 1 year, 5 months ago:
I wanted to make sure everyone was aware of the change that Facebook made on October 1st.
If you have any custom tabs on your Facebook page, the images on those tabs must be hosted on a secure SSL site.
If your images are not hosted on a secure site, anyone who is browsing Facebook with a secure connection sees a plain white page when they look at your custom pages (i.e. Welcome page, etc)
Please be sure you check your page. To do so, when you are on your custom page, change the url from http:// to https://. If you can still see your images, you are all set. If not, you need to have this fixed. I visit so many pages where you cannot see the welcome page due to this change and the page owners are losing out on the impact of their custom pages.
Hope this helps!