The server didn't send back a proper XML response.

I'm using ASP.NET, C# 2.0, FCKeditor 2.6.3

Whenever I click on Browse button an error message pops out.

Error:

The server didn't send back a proper XML response. Please contact your system administrator.

XML Request error: Unknown(0)

Requested URL:

/fckeditor/editor/filemanager/connectors/asp/connector.aspx?Command=....

I have located where the problem is, why it is coming and now I 'm looking for its solution.

The page which is having fckeditor is SSL enabled. When I 'm removing the configuration for SSL then it is working fine without any error.

The configuration settings for SSL in the web config file is as follows:

<secureWebPages mode="RemoteOnly" ignoreHandlers="WithStandardExtensions">
    <directories>
      <add path="Admin" recurse="True" />
    </directories>
</secureWebPages>

<system.net>
    <defaultProxy>
   <!--   <proxy usesystemdefault="False" bypassonlocal="False"
         proxyaddress="http://ntproxy.1and1.com:3128"/> -->
    </defaultProxy>
</system.net> 

Please let me know how to fix this? I want that folder to be SSL enabled and also want to have fckeditor working!

Thanks & Regards,
Bugs