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Chapter 12. Security > Cross-Domain Policy

Cross-Domain Policy

Macromedia has defined very stringent policies (called the security sandbox by Macromedia) for the control and management of how SWF files can interact with one another and with executable files on the Web or your hard drive. Most of these policies are more stringent in Flash Player 7 than in previous versions (and more stringent than many other web technologies implement). You may find that some sites that work with Flash Player 6 do not work in Flash Player 7 due to added security restrictions, as described at http://www.macromedia.com/devnet/mx/flash/articles/fplayer_security.html.

Macromedia's cross-domain policy determines whether a SWF can load or communicate with other SWFs or content from other domains. In particular, for Flash Player 7, the default policy is as follows:


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