问题描述:

I want to have two facebook pages open at the same time as part of my html page.

So when you go to mypage.html, there will be displayed two facebook pages. Is this possible?

I get something like:

with code like:

<frameset cols="25%,75%">

or

<iframe height="*" src="http://www.facebook.com/photo.php?fbid=10150277739848763&set=pu.105012493762&type=1&theater" width="100%">

<p>Your browser does not support iframes.</p> </iframe>

网友答案:

Facebook prevents you from linking directly to the actual site via IFRAME (or any frame). This is because any site putting Facebook in an IFRAME(or any frame) could use Javascript to access elements of the facebook page, including username and password fields.

There is no way around this. It is built in to the browsers themselves to send some information along in the request header that says it is being requested to be put in frame.

Gmail and several other sites do this as well.

网友答案:

I work on Facebook's security team and actually helped write the code that causes this. We do this (a form of frame busting) to prevent clickjacking attacks where an attacker can put Facebook in an iframe, hide it, and trick the user into clicking in the facebook frame and taking some action (e.g. posting a malicious link to their profile, etc).

While Jason's answer is going in the right direction, it's not true that browsers will give you access to the DOM of a page you insert in an iframe in your page. The Same Origin Policy dictates that javascript on one domain cannot access anything on a page on a different domain.

网友答案:

There are specific situations where overriding the "x-frame-options" security policy is useful, such as in digital signage where it is desirable to show an organization's facebook page in a iframe alongside other signage iframes.

Clickjacking and phishing will not occur because the organization is displaying its own facebook page on its own browser-driven display devices.

If the browser doesn't provide an internal x-frame override on its "about:flags" page, you may need to install a browser extension to override x-frame-options on the signage device.

相关阅读:
Top