ocket__is_upgrade.return_value">Return
        Value</a>
      </h5>
<p>
        <code class="computeroutput"><span class="keyword">true</span></code> if the request is a WebSocket
        Upgrade.
      </p>
</div>
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<td align="right"><div class="copyright-footer">Copyright © 2016-2019 Vinnie
      Falco<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
   