The Secure Socket Layer (SSL) keeps an active connection to the source to ensure that the transmission and receipt of data is secure. If the browser is left unattended for a time though, this connection is closed out both to ensure security and to reduce bandwidth use. For non-SSL content this connection can be revived again at any time. Unfortunately SSL requires that a user connecting to secure content renegotiate from the beginning if the connection is lost. This ensures that the security present retains its integrity and that is why the report must be re-run to be viewed again if it is left open for a time.