Errors:
The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
A “charset” attribute on a “meta” element found after the first 1024 bytes.
Bad start tag in “img” in “head”.
Stray end tag “noscript”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Stray end tag “head”.
Start tag “body” seen but an element of the same type was already open.
Element “gcse:search” not allowed as child of element “header” in this context. (Suppressing further errors from this subtree.)
Attribute “webkitallowfullscreen” not allowed on element “iframe” at this point.
Attribute “mozallowfullscreen” not allowed on element “iframe” at this point.
Bad value “true” for attribute “allowfullscreen” on element “iframe”.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
Element “img” is missing required attribute “src”.
Element “gcse:search” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
Warnings:
Element name “gcse:search” cannot be represented as XML 1.0.
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