Don't Redirect aws health checks

filter.php

function filterHealthChecks($redirect_url, $request_url) {
  $localIp = getHostByName(getHostName());
  error_log($redirect_url);
  error_log($request_url);
  if(preg_match("http[s]?://{$localIp}/")) {
    error_log("Matched");
    return false;
  }
  return true;
}
add_filter('redirect_canonical',1,2);