JavaScript alert "the page says"

Question

I have a form and I am using JavaScript to validate the form, so if we leave a field blank it will alert "Please Enter your Name".

If I go to the link directly, it works perfectly. But I am using an iFrame to embed it into other sites. When I embed it, and click Submit with an empty field it says:

The page at http://www.domain.com says: Please Enter your name

Answer 1

This is a security measure to prevent a framed site from displaying a message that appears to come from the parent site.

You cannot avoid it without avoiding the use of alert().

You could display the information to the user by modifying the DOM to display it as part of the page instead.