-core/String-class.html">String</a></span>
        const <span class="name deprecated">IF_MODIFIED_SINCE</span>
        =
        <span class="constant-value">ifModifiedSinceHeader</span>
    </section>

        <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">static const IF_MODIFIED_SINCE = ifModifiedSinceHeader

</code></pre>
    </section>

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