I have been having to make changes to the core library, DotNetNuke.Framework.AJAX.IsInstalled(), to compensate for an XPath limitation in the code. We have to wrap our system.web section in a <location inheritInChildApplications="false"> to prevent inheritence. This tag is valid according to the schema and, if used, results in a null XPathNavigator object that returns false. I have made the following change to allow an additional check for the nesting tag before return false.

Public Shared Function IsInstalled() As Boolean

            'First check that the script module is installed
            Dim configDoc As XmlDocument = Config.Load()
            Dim moduleNavigator As XPathNavigator = configDoc.CreateNavigator.SelectSingleNode("/configuration/system.web/httpModules/add[@name='ScriptModule']")

            ' Original code block that will fail if the XPath has been changed due to system.web wrapping.
            'If moduleNavigator Is Nothing Then
            '    Return False
            'Else
            '    Return Not ScriptManagerType() Is Nothing And IsHostEnabled()
            'End If

            If moduleNavigator Is Nothing Then
                ' Check the new XPath for a wrapped system.web
                moduleNavigator = configDoc.CreateNavigator.SelectSingleNode("/configuration/location/system.web/httpModules/add[@name='ScriptModule']")

                If moduleNavigator Is Nothing Then
                    Return False
                Else
                    Return Not ScriptManagerType() Is Nothing And IsHostEnabled()
                End If
            Else
                Return Not ScriptManagerType() Is Nothing And IsHostEnabled()
            End If

        End Function

Can someone from the core team please add this to Gemini. This should be an easy fix for a future release to not limit the XPath string to only the default nesting. I have seen other with this problem.

George