<link itemprop="availability" href="http://schema.org/InStock&quot; /> -- woocommerce, on page product give error.

temporarily be solved

if(a.getAttribute("rel")){if(a.getAttribute("rel").indexOf("style")>-1&&a.href&&a.href.length!==0&&!a.disabled){r[r.length]=a}}}if(a.getAttribute("itemprop")){if(a.getAttribute("itemprop").indexOf("style")>-1&&a.href&&a.href.length!==0&&!a.disabled){r[r.length]=a}}}

but as a right?

original string if(a.getAttribute("rel").indexOf("style")>-1&&a.href&&a.href.length!==0&&!a.disabled){r[r.length]=a}}