src/references/instructions/client/handshake/image.xml

<?xml version="1.0" encoding="UTF-8"?>

<section xml:id="image-handshake-instruction" xmlns="http://docbook.org/ns/docbook" version="5.0"
    xml:lang="en" xmlns:xi="http://www.w3.org/2001/XInclude">
    <title>image</title>
    <indexterm>
        <primary>image</primary>
    </indexterm>
    <para>Specifies which image mimetypes are supported by the client. Each parameter must be a
        single mimetype, listed in order of client preference, with the optimal mimetype being the
        first parameter. This is the fifth instruction sent during the handshake phase.</para>
    <para>It is expected that the supported mimetypes will include at least "image/png" and
        "image/jpeg", and the server <emphasis>may</emphasis> safely assume that these mimetypes are
        supported, even if they are absent from the handshake.</para>
</section>