How does P3P address privacy policies for embedded content?
HTML pages often contain links to other resources that are directly embedded in the page, such as images, sounds, layers or frames. Thus, in order to render the page, user agents need to make additional requests that might or might not be covered by the policy in effect for the page that is currently laid out. It is usually not apparent to users when Web pages may be covered by multiple privacy policies. However, a P3P user agent can detect when different policies apply to different objects on a page, and can fetch and review each of these policies.
