default.jsp is the default display page for the SAML v2 Plug-in for Federation Services. After a successful SAML v2 operation (single sign-on, single logout, or federation termination), a page is displayed. This page, generally the originally requested resource, is specified in the initiating request using the <RelayState> element. If a <RelayState> element is not specified, the value of the <defaultRelayState> property in the extended metadata configuration is displayed. If a <defaultRelayState> is not specified, this default.jsp is used. default.jsp can take in a message to display, for example, upon a successful authentication. The page can also be modified to add additional functionality.
When the value of <RelayState> or <defaultRelayState> contains special characters (such as &), it must be URL-encoded. For more information, see Service Provider Extended Metadata Properties.