Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “type” attribute for the “style” element is not needed and should be omitted.
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “subscription-form” was here.
The “language” attribute on the “script” element is obsolete. You can safely omit it.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
Attribute “"” is not serializable as XML 1.0.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
The first occurrence of ID “fb-root” was here.
Errors:
Bad value “” for attribute “id” on element “a”: An ID must not be the empty string.
Attribute “href” not allowed on element “button” at this point.
The element “button” must not appear as a descendant of the “a” element.
Duplicate ID “subscription-form”.
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.
Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.
Attribute “"” not allowed on element “div” at this point.
Duplicate ID “fb-root”.
The “aria-labelledby” attribute must point to an element in the same document.
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