P3P bug check

[alnico]

I am trying to get my site P3P compatible (even though there are some who say its useless!) and I discovered a bug that HTML Validator should check for: (I discovered the bug when debugging my P3P code on the W3C site).

The CP (compact policy) value must be enclosed in double quotes. Which means that:

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<meta http-equiv="P3P" content="policyref='http://www.example.com/w3c/p3p.xml', CP='NID DSP NOI COR'" />

is incorrect despite it validating.

It should render as:

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<meta http-equiv="P3P" content='policyref="http://www.example.com/w3c/p3p.xml", CP="NID DSP NOI COR"' />


Also, an additional check should be carried out for the following:

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<meta http-equiv="P3P" content='policyref="http://www.example.com/w3c/p3p.xml", CP="NID DSP NOI COR"' />
<link rel="P3Pv1" href="/w3c/p3p.xml" />

If any one of the two are present, then a TIP should be displayed requesting the other tag be present. For ideal functioning of the P3P, both meta tags should be present.

[Albert Wiersch]

Thanks. I will look into this additional checking for a future update.