Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Duplicate attribute “title”.
Attribute “alt” not allowed on element “a” at this point.
Attribute “method” not allowed on element “div” at this point.
Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
End tag “div” seen, but there were open elements.
Unclosed element “form”.
Stray end tag “form”.
Duplicate attribute “data-minlength”.
Attribute “name” not allowed on element “meta” at this point.
Element “meta” is missing one or more of the following attributes: “itemprop”, “property”.
Duplicate ID “username_validation_error”.
Duplicate ID “val_spin”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Duplicate ID “val_true”.
Duplicate ID “val_false”.
Duplicate attribute “alt”.
Warnings:
The “form” role is unnecessary for element “form”.
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “username_validation_error” was here.
The first occurrence of ID “val_spin” was here.
The first occurrence of ID “val_true” was here.
The first occurrence of ID “val_false” was here.
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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