Basic HTML version of Foils prepared May 19 99

Foil 142 Same Origin Policy

From Remarks on Internet and Java Security Basic Information Track Computational Science Course CPS616 -- Spring Semester 1999. by Geoffrey Fox, Mehmet Sen
1 When loading a document from one origin, a script loaded from a different origin cannot get or set certain predefined properties of certain browser and HTML objects in a window or frame.
2 Origin is defined as protocol://host, where host may include optional parts of URL including :port, part of an URL.
3 Any applets in the document are also subject to origin checks when calling JavaScript.
4 The same origin policy is the default policy since Netscape 2.
5 Properties subject to origin check
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