Determine if a site will open in an iframe
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Determine if a site will open in an iframe
If an image fails to load on a page we have the onerror function which can load a default image.
Is there an equivalent for loading a site into an iFrame?
E.g. mashable.com can be loaded into an iFrame whereas many social sites e.g. Facebook, Twitter et al can not.
So when a user tries to load e.g. Twitter and nothing is shown, I'd like a message to show saying "this page cannot be displayed" and then open the link in a new tab instead and direct them after say 3 seconds.
Not sure if this is possible.
Due to security restrictions, that isn't possible from the client side. However you have two alternative solutions:
- Do a call from the server and check for X-Frame-Options headers.
- Alternatively you can set a timeout and assume the page can't be loaded if the load event isn't fired after some time.
See Catch error if iframe src fails to load . Error :-"Refused to display 'http://www.google.co.in/' in a frame.."
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