How to mark a script as safe for IE?

I have a simple html page that contains a small java script.
When I click on the file it runs fine, however if I edit and save the file even without making changes it always triggers an IE script warning when it is loaded. Is there a way to mark the script as safe so the warning does not appear under default browser settings?

The only unusual thing about the original file is that the lines are terminated by a Unix style LF (0x0a) rather than a Windows style CRLF (0x0d0a).

I can post the page source if it will help.

BTW - I am not a coder. I have to code with a language manual in one hand.