Title: {{value:foo}}
Foo: Foo Header Value

<p>
    The <b>&lbrace;&lbrace;value:foo&rbrace;&rbrace;</b> substitution
    parameter evaluates to the value of the header referenced by its
    rvalue.
</p>

<p>
    For example, this node has a <b>Foo</b> header defined like this:
</p>

<p><pre>Foo: Foo Header Value</pre></pre>

<p>
    If we include the <b>&lbrace;&lbrace;value:foo&rbrace;&rbrace;</b>
    parameter on the page, it will be replaced with the value of the
    header when the page is rendered.
</p>

<p>This is the value of the <i>Foo</i> header: <b>{{value:foo}}</b></p>

<h3>HTML Escaping</h3>

<p>
    When the HTML pages are rendered, the value of the
    <b>&lbrace;&lbrace;value:foo&rbrace;&rbrace;</b> parameter will be HTML
    escaped.
</p>

<p>
    There is also another variant of this parameter,
    {{node-link:parameters/value-unescaped}}, which works identically, except
    without the HTML escaping step.
</p>

{{include:header-parameter-naming-convention.html}}

