I am retrofitting an intranet application to uses integrated windows authentication. The application is built in asp classic/vbscript.
The application authenticates users by obtaining their username from the Request.ServerVariables("LOGON_USER") method, and checking the name against a list of registered users in a MSSQL database.
This works well - unobtrusively - until the user tries to browse to a page where I have TinyMCE editor enabled. When the client tries to execute tinymce.init({...}), the server prompts the user with an "Authentication Required" dialog box. If the user clicks "Cancel", the box disappears and the page can be accessed just fine.
How can I eliminate the authentication required dialog box?
I have ruled out server side permissions issues, as the client can execute other javascript functions without a problem. I suspect it may be an issue relating to AJAX.