Comment 3 for bug 794879

@Lorenzo
Since this bug is about the broken way in which some errors are shown, rather than the causes of errors themselves, you may want to ask about that by reopening https://answers.launchpad.net/launchpad/+question/160770 (or mark it as Solved and post a new question). For example, the errors I experienced (included in the description above) had nothing to do with the REFERER header.