message: chore: small typo fix
diff: @@ -79,7 +79,7 @@ function processErrorResponse(xhr, textStatus, url) {
  // cross-side
  return new ConnectionError('Cross domain request was not possible. Either your BOSH server does not send any ' +
  'Access-Control-Allow-Origin header or the content-security-policy (CSP) blocks your request. ' +
  - 'The savest way is still to use Apache ProxyRequest or Nginx proxy_pass.', 'cross-domain');
  + 'The safest way is still to use Apache ProxyRequest or Nginx proxy_pass.', 'cross-domain');
  } else if (xhr.status === 404) {
  // not found
  return new ConnectionError('Your server responded with "404 Not Found". Please check if your BOSH server is running and reachable via ' + urlWithProtocol + '.', 'not-found');
  