Question

is it possible for javascript inside an iFrame to update the URL (hash) of the parent page (and retrieve it)
Does it have any permissions?

To further explain, I have no hosting for this domain, I can only set up an Iframe. I also cannot use a DNS config to get that page to display because of limitations of my hoster.
I also cannot transfer the domain to them to make that work because my clients wants to keep control of the domain.

Thank you for your help!

Answer 1

If the <iframe> page is within the same domain, probably yes. Otherwise you don’t get access to the parent page due to cross-domain restrictions.

You can change the URL of the parent page though:

top.location.href = 'http://www.example.com';