Why Iframe dosen't work for yahoo.com

Question

I find this doesn\'t work:

I have read this question, but I don\'t understand w

Answer 1

Some websites like google, yahoo have been disabled the iframe embedding for their site. If you want to do that then grab their html using curl or file_get_conents on server side and show it.

check the HTTP response header X-Frame-Option. I think for yahoo it should be deny or sameorigin that means only the page of yahoo can embed its other pages in iframe