The issues still seems to be somewhat intermittent. Facebook hasn't updated the bug-report (posted above) recently, and seem to feel confident they fixed the problem on Friday. Due to Content Delivery Networks, caching, and general internet wonkiness, the problem still seems to be present in a very few cases. We haven't seen the problem occur since Friday, and new bug-reports in that thread are diminishing.
We think the issue is fixed, and you should be able to undo the https call mentioned above. Please let us know if you still see issues.
Bob- I responded to your other post about display issues. Hope that helped clarify the issue.