O'Reilly logo

Privacy What Developers and IT Professionals Should Know by J. C. Cannon

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

A P3P Preference Exchange Language (APPEL)

This chapter has devoted a lot of time to P3P, which enables Web sites to express their privacy policy. APPEL[21] is an XML-based language that provides a means for individuals to indicate their privacy preferences, which can be compared against a Web site's policy. The user can use APPEL rules to instruct a Web browser to complete, limit, or block the request for a Web resource. Limiting a request results in cookies and referrer headers being blocked.

[21] http://www.w3.org/TR/P3P-preferences/

When defining a rule, the behavior must first be defined. The choices are continue, limited, or block. The user can choose to be prompted when a rule fires, to be given a chance to override the specified behavior. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required