Errors:
Attribute “xmlns:fb” not allowed here.
Attribute “xmlns:og” not allowed here.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
Attribute “custom-element” not allowed on element “script” at this point.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “2017-12-5” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “2017-12-1” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Attribute “ezaw” not allowed on element “span” at this point.
Attribute “ezah” not allowed on element “span” at this point.
Attribute “adunitname” not allowed on element “div” at this point.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “null"” not allowed on element “span” at this point.
The “sizes” attribute may be specified only if the “srcset” attribute is also present.
Bad value “2017-12-4” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Bad value “2017-12-2” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Self-closing syntax (“/>”) used on a non-void HTML element. Ignoring the slash and treating as a start tag.
The text content of element “script” was not in the required format: Expected space, tab, newline, or slash but found “<” instead.
Element “script” must not have attribute “async” unless attribute “src” is also specified.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.
Attribute with the local name “xmlns:og” 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”.
Attribute “null"” is not serializable as XML 1.0.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
The “contentinfo” role is unnecessary for element “footer”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
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