Errors:
Attribute “xmlns:b” not allowed here.
Attribute “xmlns:data” not allowed here.
Attribute “xmlns:expr” not allowed here.
Bad value “service.post” for attribute “rel” on element “link”: The string “service.post” is not a registered keyword.
Attribute “name” not allowed on element “div” at this point.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Element “div” not allowed as child of element “label” in this context. (Suppressing further errors from this subtree.)
Element “style” not allowed as child of element “a” in this context. (Suppressing further errors from this subtree.)
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
Stray end tag “img”.
Element “div” not allowed as child of element “summary” in this context. (Suppressing further errors from this subtree.)
No space between attributes.
Attribute “name” not allowed on element “footer” at this point.
Bad value “true” for attribute “async” on element “script”.
Warnings:
Attribute with the local name “xmlns:b” is not serializable as XML 1.0.
Attribute with the local name “xmlns:data” is not serializable as XML 1.0.
Attribute with the local name “xmlns:expr” is not serializable as XML 1.0.
The “type” attribute for the “style” element is not needed and should be omitted.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
The “main” role is unnecessary for element “main”.
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
The “button” role is unnecessary for element “button”.
The “complementary” role is unnecessary for element “aside”.
The “type” attribute is unnecessary for JavaScript resources.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.
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