Theaffiliategateway.sg W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
X-UA-Compatible HTTP header must have the value “IE=edge”, was “IE=Edge,chrome=1”.
Attribute “value” not allowed on element “optgroup” at this point.
Warnings:
The “type” attribute is unnecessary for JavaScript resources.
The “banner” role is unnecessary for element “header”.
The “navigation” role is unnecessary for element “nav”.
Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.
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).
Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.
The “contentinfo” role is unnecessary for element “footer”.
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