The page cannot be displayed

The request was not completed due to preconditions that are set in the request header. Preconditions prevent the requested method from being applied to a resource other than the one intended. An example of a precondition is testing for expired content in the page cache of the client.

Please try the following:

  • Navigate to the home page for this Web site and look for links to the information that you want.
  • Use your Web browser's tools to delete cached pages and then click the Refresh button to try again.

HTTP Error 412 - Precondition failed.
Internet Information Services (IIS)

Technical Information (for support personnel)

  • Go to Microsoft Product Support Services and perform a title search for the words HTTP and 412.
  • Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Using Content Expiration, and About Custom Error Messages.