Revision 1132021 of Simple header

Revision slug: Glossary/Simple_header
Revision title: Simple header
Revision id: 1132021
Created: Oct 19, 2016, 6:48:05 AM
Creator: teoli
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A simple header (or CORS-safelisted request header) is one of the following HTTP headers:

{{HTTPHeader("Accept")}},
{{HTTPHeader("Accept-Language")}},
{{HTTPHeader("Content-Language")}},
{{HTTPHeader("Content-Type")}} with a MIME type of its parsed value (ignoring parameters) of either application/x-www-form-urlencoded, multipart/form-data, or text/plain.

Or one of these client hint headers:

{{HTTPHeader("DPR")}}
{{HTTPHeader("Downlink")}}
{{HTTPHeader("Save-Data")}}
{{HTTPHeader("Viewport-Width")}}
{{HTTPHeader("Width")}}

Learn more

HTTP headers
{{Glossary("Simple response header")}}
{{Glossary("Forbidden header name")}}
{{Glossary("Request header")}}

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<p>A <dfn><em>simple header</em> (or </dfn><em>CORS-safelisted request header</em>) is one of the following <a href="/en-US/docs/Web/HTTP/Headers">HTTP headers</a>:</p>

<ul>
 <li>{{HTTPHeader("Accept")}},</li>
 <li>{{HTTPHeader("Accept-Language")}},</li>
 <li>{{HTTPHeader("Content-Language")}},</li>
 <li>{{HTTPHeader("Content-Type")}} with a MIME type of its parsed&nbsp;value (ignoring parameters) of either <code>application/x-www-form-urlencoded</code>, <code>multipart/form-data</code>, or <code>text/plain</code>.</li>
</ul>

<p>Or one of these client hint headers:</p>

<ul>
 <li>{{HTTPHeader("DPR")}}</li>
 <li>{{HTTPHeader("Downlink")}}</li>
 <li>{{HTTPHeader("Save-Data")}}</li>
 <li>{{HTTPHeader("Viewport-Width")}}</li>
 <li>{{HTTPHeader("Width")}}</li>
</ul>

<h2 id="Learn_more">Learn more</h2>

<ul>
 <li><a href="/en-US/docs/Web/HTTP/Headers">HTTP headers</a></li>
 <li>{{Glossary("Simple response header")}}</li>
 <li>{{Glossary("Forbidden header name")}}</li>
 <li>{{Glossary("Request header")}}</li>
</ul>

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