It looks like this is a known issue, due to "same origin" security policy, see https://bugzilla.mozilla.org/show_bug.cgi?id=760436
The reason why the site works after loading the higher level page is that the font has been cached already.
It looks like this is a known issue, due to "same origin" security policy, see https://bugzilla.mozilla.org/show_bug.cgi?id=760436
The reason why the site works after loading the higher level page is that the font has been cached already.