How can I <iframe> Gmail?

Question

I know that Gmail might put some security measures in place to prevent this, but I really need to put Gmail inside an element.

The two following methods don\'t work

Answer 1

You cannot. GMail, like most of Google's other web services, sets the HTTP header:

X-Frame-Options: SAMEORIGIN

which disallows their site from being framed by any site other than GMail itself.