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.
Bad value “revision” for attribute “rel” on element “link”: The string “revision” is not a registered keyword.
Text not allowed in element “iframe” in this context.
Bad value “menu-trigger” for attribute “rel” on element “a”: The string “menu-trigger” is not a registered keyword.
Element “h1” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
Attribute “autocapitalize” not allowed on element “input” at this point.
Attribute “autocorrect” not allowed on element “input” at this point.
Attribute “alt” not allowed on element “a” at this point.
The “for” attribute of the “label” element must refer to a non-hidden form control.
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 “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
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