IssueWhen refreshing an extract of a data source that uses the web data connector, the extract refresh fails with "unknown failure". The Server Administrator can find additional details under Server > Status > Background Tasks for Extracts, the tooltip for the extract refresh shows:
Connection to an untrusted web data connector <URL> is not allowed. The table "[TableauTemp].[webdata-direct.<etc>]" Does not exist. Unable to connect to the server.