prevent iframe from redirecting parent page

[HandyMan]

This is the situation:I have on the same domain, an iframe inside my web site.currently, I have no immediate access to the iframe code as of deployment issues.when the iframe loads, the code inside it detects something that triggers a redirection on the parent page. Temporarily, I want to remove it. I know I can use the onbeforeload, but a warning will be displayed every time the user click on a any link.Is there a way I can detect the redirection? it happens before the main parent page is fully loaded.I googled it a lot but still have no working solution.Thanks!