Best practice for meta data in a html document?

W3C validation is meaningless. HTML != XML, so there isn’t any schema to validate it. No browser will choke because you added a meta element with an unregistered name. If you really are worried, you could use the data attribute on a meta element like:

<meta data-details="52:AS6[rxSdsMd4RgYXJgeabsRAVBZ:0406139009]" data-policyId="0123456789" />

at least then you know no future spec will give meaning to your data.

For more info read:

Leave a Comment