2.2.2 [P3P1.0:2002] Section 2.3.2.1.2, Wildcards in policy reference files
C0002:
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Note that P3P user agents MAY ignore any URI pattern that does not conform to [URI].
All Document Modes (All Versions)
Invalid URIs are ignored.
C0003:
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The wildcard character MAY be used in the INCLUDE and EXCLUDE elements, in the COOKIE-INCLUDE and COOKIE-EXCLUDE elements, and in the HINT element.
All Document Modes (All Versions)
Wildcards are supported only for the INCLUDE and EXCLUDE elements.