How to validate html when u add facebook like box?

Validation Output: there is no开发者_如何学Python attribute "profile_id"

Any solution for html validation?

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I guess you're using the XFBML method. Did you try to put the XFBML code inside a CDATA delimiter? See http://www.w3schools.com/xml/xml_cdata.asp

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Facebook are big enough and i suspect smart enough to come up with some type of wrapper that would remove these error - its annoying that any major web presence can create such apps / widgets knowing they will create invalid HTML!!