Placing an iframe
on the page cannot break RadMenu. What can break RadMenu is incorrect markup. A common mistake with the iframe
element is to treat it as self-closing. Many browsers refuse to parse any markup after such incorrect iframe
tag and this might cause all kinds of problems. It certainly can prevent RadMenu from operating correctly. Can you confirm that your iframe
tags are close correctly?
|<iframe /> <!-- Incorrect -->
|<iframe></iframe> <!-- Correct -->
the Telerik team