Return a content type image png | GD Library

[JmePaz]

I come across to this library and finding ways to implement a web request that returns a png qr code as image.

I follow/copy this code: example of image. But the content does not render properly.

Am I missing something? I already enable GD extension. Thank you.

[JmePaz]

Never mind I just add this option output type
use chillerlan\QRCode\Output\QROutputInterface;
$options->outputType = QROutputInterface::CUSTOM;