Errors:
Duplicate attribute “prefix”.
No space between attributes.
A slash was not immediately followed by “>”.
Attribute “image:” not allowed on element “html” at this point.
Attribute “http:” not allowed on element “html” at this point.
Attribute “ogp.me” not allowed on element “html” at this point.
Attribute “ns#image” not allowed on element “html” at this point.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
A “link” element with a “sizes” attribute must have a “rel” attribute that contains the value “icon” or the value “apple-touch-icon”.
Saw “<” when expecting an attribute name. Probable cause: Missing “>” immediately before.
Duplicate attribute “class”.
Attribute “<img” not allowed on element “img” at this point.
Stray end tag “a”.
No “p” element in scope but a “p” end tag seen.
Duplicate ID “s”.
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Warnings:
Attribute “image:” is not serializable as XML 1.0.
Attribute “http:” is not serializable as XML 1.0.
Attribute “ns#image” is not serializable as XML 1.0.
Consider avoiding viewport values that prevent users from resizing documents.
Attribute “<img” is not serializable as XML 1.0.
Empty heading.
The first occurrence of ID “s” was here.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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