public function addRequiredHeaders()
{
foreach ($this->defaultHeaders as $k => $v) {
// remove any header that is there now
$this->request = $this->request->withoutHeader($k);
$this->request = $this->request->withHeader($k, $v);
}
if (!empty($this->subProtocols)) {
$this->request = $this->request->withoutHeader('Sec-WebSocket-Protocol');
$this->request = $this->request->withHeader('Sec-WebSocket-Protocol', $this->subProtocols);
}
$this->request = $this->request->withoutHeader("Sec-WebSocket-Key");
$this->request = $this->request->withHeader("Sec-WebSocket-Key", $this->websocketKey);
}
