Created attachment 112093 [details]
Screen shot of page
Logged in to my apple account and was unable to see settings and unable to edit most of them. Logged in with Safari 5.1 and everything worked. You can see on the screen shot:
1) No Billing address visible
2) Express Purchase Button could not be changed
3) Edit buttons were not active
Confirmed with r98353.
This appears to work as of r98510. I think that this might be a dup of https://bugs.webkit.org/show_bug.cgi?id=70094
Let's test again once that fix is in a build.
*** This bug has been marked as a duplicate of bug 70094 ***