Dear List Platform: FreeBSD 4.6, Zope 2.5.1, CMF 1.3, Apache Apache is in front of the Zope server. Error message: The proxy server received an invalid response from an upstream server. The proxy server could not handle the request POST /admin/submit_handler. Reason: Document contains no data Problem is that the error occurs "some" times. It is *not* browser dependt. Any ideas? \Oliver