Errors:
A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.
Attribute “about” not allowed on element “meta” at this point.
Bad value “/us/kayaks?type[]=27” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
Bad value “/us/kayaks?type[]=28” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
Bad value “/us/kayaks?activity[]=24” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
Bad value “/us/kayaks?type[]=302” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.
Discarding unrecognized token “shop” from value of attribute “role”. Browsers ignore any token that is not a defined ARIA non-abstract role.
Bad value “textbox” for attribute “type” on element “input”.
Attribute “placeholder” is only allowed when the input type is “email”, “number”, “password”, “search”, “tel”, “text”, or “url”.
Attribute “required” is only allowed when the input type is “checkbox”, “date”, “datetime-local”, “email”, “file”, “month”, “number”, “password”, “radio”, “search”, “tel”, “text”, “time”, “url”, or “week”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
The “for” attribute of the “label” element must refer to a non-hidden form control.
Warnings:
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).
The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.
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