Errors:
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “'” not allowed on element “script” at this point.
Attribute “x-ms-format-detection” not allowed on element “body” at this point.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
The element “input” must not appear as a descendant of the “a” element.
The element “button” must not appear as a descendant of the “a” element.
Stray end tag “span”.
Element “div” is missing one or more of the following attributes: “role”.
Element “script” must not have attribute “charset” unless attribute “src” is also specified.
Bad value “row” for attribute “role” on element “section”.
An element with “role=row” must be contained in, or owned by, an element with “role=treegrid” or “role=grid” or “role=rowgroup”.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Bad value “” for attribute “coords” on element “area”: A polyline must have at least six comma-separated integers.
Duplicate ID “flags”.
Duplicate ID “sortable”.
The “aria-labelledby” attribute must point to an element in the same document.
Warnings:
Attribute “'” is not serializable as XML 1.0.
The “navigation” role is unnecessary for element “nav”.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “main” role is unnecessary for element “main”.
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The first occurrence of ID “flags” was here.
The first occurrence of ID “sortable” was here.
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