Errors:
Bad value “en_GB” for attribute “lang” on element “html”: The language subtag “en_gb” is not a valid language subtag.
Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “content"309793635825707"” not allowed on element “meta” at this point.
Element “meta” is missing required attribute “content”.
Attribute “async” not allowed on element “a” 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.
Bad value “417px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “354px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “546px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “259px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “37px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Bad value “” for attribute “src” on element “iframe”: Must be non-empty.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “itemprop” attribute was specified, but the element is not a property of any item.
Warnings:
Consider avoiding viewport values that prevent users from resizing documents.
Attribute “content"309793635825707"” is not serializable as XML 1.0.
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