public function prepareHeaders($requestHeaders)
{
$responseHeaders = [];
// handle Origin
if (isset($requestHeaders['Origin'], $this->cors['Origin'])) {
if (in_array('*', $this->cors['Origin']) || in_array($requestHeaders['Origin'], $this->cors['Origin'])) {
$responseHeaders['Access-Control-Allow-Origin'] = $requestHeaders['Origin'];
}
}
$this->prepareAllowHeaders('Headers', $requestHeaders, $responseHeaders);
if (isset($requestHeaders['Access-Control-Request-Method'])) {
$responseHeaders['Access-Control-Allow-Methods'] = implode(', ', $this->cors['Access-Control-Request-Method']);
}
if (isset($this->cors['Access-Control-Allow-Credentials'])) {
$responseHeaders['Access-Control-Allow-Credentials'] = $this->cors['Access-Control-Allow-Credentials'] ? 'true' : 'false';
}
if (isset($this->cors['Access-Control-Max-Age']) && Yii::$app->getRequest()->getIsOptions()) {
$responseHeaders['Access-Control-Max-Age'] = $this->cors['Access-Control-Max-Age'];
}
if (isset($this->cors['Access-Control-Expose-Headers'])) {
$responseHeaders['Access-Control-Expose-Headers'] = implode(', ', $this->cors['Access-Control-Expose-Headers']);
}
return $responseHeaders;
}