Warnings:
The “type” attribute is unnecessary for JavaScript resources.
Attribute with the local name “xmlns:f” is not serializable as XML 1.0.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
Empty heading.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Errors:
Bad start tag in “img” in “head”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “noscript”.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Duplicate attribute “id”.
Attribute “xmlns:f” not allowed here.
Element “figcaption” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
The “itemtype” attribute must not be specified on elements that do not have an “itemscope” attribute specified.
Bad value “” for attribute “id” on element “div”: An ID must not be the empty string.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “100%” for attribute “height” on element “iframe”: Expected a digit but saw “%” instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “aria-labelledby” attribute must point to an element in the same document.
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