Originally Posted by MrAtoBandMe
A likely problem is that your host isn't allowing it, but it could also be the other website is not allowing it.
If you're simply trying to copy the contents of the website, try this PHP code to do so:
$homepage = file_get_contents('http://www.example.com/');
There are a few other options that may be available to you, but if your host does not allow you to do things like this that may be impossible as well.
It might help if you post your link so we can view the error. It's hard to diagnose something if we can't test it. For instance, you can rule out your host by checking it on this page with the iframe code you have: http://www.w3schools.com/html/tryit....e_height_width
If you get the same error, it's the other website. If you do not get an error, it's your web host.