I cannot import a site export created with Confluence 5.4.3, neither a space exported with that version. The site ZIP is 50MB, the space is 10MB. I'm trying to import into our newly created onDemand version. Strangely, the first site import today from 4.2.2 worked (but the spaces were missing):
20 seconds (for the 10MB space) after pressing the "Import" button, I get "Your request could not be processed because a required security token was not present in the request. You may need to re-submit the form or reload the page". Firebug tells me that this is a 403 error for the POST to /wiki/admin/import/doimportconfluencesite.action.
Happens with both Firefox and Chromium. What can I do?