February 24, 2012
I have small test WP site and I am using AIOSEO plugin. All works fine but when I tried to validate one of my pages on validator.w3.org I got following error message:
<meta property="og:url" content="ht…
You have used the attribute named above in your document, but the document type you are using does not support that attribute for this element. This error is often caused by incorrect use of the "Strict" document type with a document that uses frames (e.g. you must use the "Transitional" document type to get the "target" attribute), or by using vendor proprietary extensions such as "marginheight" (this is usually fixed by using CSS to achieve the desired effect instead).
This error may also result if the element itself is not supported in the document type you are using, as an undefined element will have no supported attributes; in this case, see the element-undefined error message for further information.
How to fix: check the spelling and case of the element and attribute, (Remember XHTML is all lower-case) and/or check that they are both allowed in the chosen document type, and/or use CSS instead of this attribute. If you received this error when using the element to incorporate flash media in a Web page, see the FAQ item on valid flash.
I found this code in my Source Code but nowhere in WP nor in AIOSEO plugin settings page I can’t see where to setup those parameters as it seems that instead double quotes (“) it is used ” … or it is problem that instead it shoud be
Anybody had experience like this and any suggestion how to fix it? Where in WP to find that code and to try to fix? Thanks a lot
October 16, 2011
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