Errors:
Attribute “xmlns:article” not allowed here.
Attribute “xmlns:book” not allowed here.
Attribute “xmlns:product” not allowed here.
Attribute “xmlns:profile” not allowed here.
Attribute “xmlns:video” not allowed here.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad value “revision” for attribute “rel” on element “link”: The string “revision” is not a registered keyword.
The element “header” must not appear as a descendant of the “header” element.
Attribute “alt” not allowed on element “svg” at this point.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Attribute “alt” not allowed on element “div” at this point.
No “p” element in scope but a “p” end tag seen.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Attribute with the local name “xmlns:article” is not serializable as XML 1.0.
Attribute with the local name “xmlns:book” is not serializable as XML 1.0.
Attribute with the local name “xmlns:product” is not serializable as XML 1.0.
Attribute with the local name “xmlns:profile” is not serializable as XML 1.0.
Attribute with the local name “xmlns:video” is not serializable as XML 1.0.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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