I want to use an iFrame to display the content of another web site (not mine) but I don't want to display other sites in that iFrame. For example, if the SRC for the iFrame is www.site.com then if a visitor clicks a link in that site that opens to another website, I want to prevent it and perhaps display a blank page or redirect back to the specified site.
The site hosting the iFrame uses Apache/PHP on a VPS.
I need to be able to restrict the iFrame content to what was originally specified. If this cannot be done using iFrame what else could work?
There is a similar post that does not work this way... only works on the content page and does nothing to prevent the host iFrame from controlling the content domain.