title: Websocket protocol continuation frame
body: <p>I am trying to understand the websocket protocol <a href="https://www.rfc-editor.org/rfc/rfc6455" rel="nofollow noreferrer">https://www.rfc-editor.org/rfc/rfc6455</a></p>
  <p>but do not understand what the continuation frame is. If I am making a websocket client, when would I expect a server to send this? When would I want to send it?
  The above reference has very little information about what the continuation frame is or does, or how a client (or a server) should handle it.
  From the protocol spec:</p>
  <blockquote>
  <p>Opcode:  4 bits</p>
  </blockquote>
  <pre><code>  Defines the interpretation of the &quot;Payload data&quot;.  If an unknown
    opcode is received, the receiving endpoint MUST _Fail the
    WebSocket Connection_.  The following values are defined.
  
    *  %x0 denotes a continuation frame
  </code></pre>
  <p>This is one of only three references to the continuation frame, and it is not giving me a lot to go on.</p>
  <p>Should I just ignore any frames with this opcode?</p>