public function ensureVaryHeader(HttpResponse $response)
    {
        $headers = $response->getHeaders();
        // If the origin is not "*", we should add the "Origin" value to the "Vary" header
        // See more: http://www.w3.org/TR/cors/#resource-implementation
        $allowedOrigins = $this->options->getAllowedOrigins();

        if (in_array('*', $allowedOrigins)) {
            return $headers;
        }
        if ($headers->has('Vary')) {
            $varyHeader = $headers->get('Vary');
            $varyValue  = $varyHeader->getFieldValue() . ', Origin';

            $headers->removeHeader($varyHeader);
            $headers->addHeaderLine('Vary', $varyValue);
        } else {
            $headers->addHeaderLine('Vary', 'Origin');
        }

        return $headers;
    }
public function ensureVaryHeader(HttpResponse $response)
    {
        $headers = $response->getHeaders();
        // If the origin is not "*", we should add the "Origin" value to the "Vary" header
        // See more: http://www.w3.org/TR/cors/#resource-implementation
        $allowedOrigins = $this->options->getAllowedOrigins();

        if (in_array('*', $allowedOrigins)) {
            return $headers;
        }
        if ($headers->has('Vary')) {
            $varyHeader = $headers->get('Vary');
            $varyValue  = $varyHeader->getFieldValue() . ', Origin';

            $headers->removeHeader($varyHeader);
            $headers->addHeaderLine('Vary', $varyValue);
        } else {
            $headers->addHeaderLine('Vary', 'Origin');
        }

        return $headers;
    }
public function ensureVaryHeader ( HttpResponse $ response ) { $ headers = $ response -> getHeaders ( ) ; // If the origin is not "*", we should add the "Origin" value to the "Vary" header // See more: http://www.w3.org/TR/cors/#resource-implementation $ allowedOrigins = $ this -> options -> getAllowedOrigins ( ) ; if ( in_array ( '*' , $ allowedOrigins ) ) { return $ headers ; } if ( $ headers -> has ( 'Vary' ) ) { $ varyHeader = $ headers -> get ( 'Vary' ) ; $ varyValue = $ varyHeader -> getFieldValue ( ) . ', Origin' ; $ headers -> removeHeader ( $ varyHeader ) ; $ headers -> addHeaderLine ( 'Vary' , $ varyValue ) ; } else { $ headers -> addHeaderLine ( 'Vary' , 'Origin' ) ; } return $ headers ; }
Ensure that the Vary header is set.


@link http://www.w3.org/TR/cors/#resource-implementation
@param HttpResponse $response
@return \Zend\Http\Headers
Ensure that the Vary header is set .