Is there a way to check if my reactjs app was opened from cordova app?

My problem is that the inappbrowser from cordova doesn’t handle pdfs. However, in our reactjs app, we use an Iframe to display a pdf (It has it own header and branding so it’s not opened as a standalone pdf):

return <Iframe className="h-full " src={uri} style={style} />;

where:

export function Iframe({ ...props }: IframeProps) {
  return (
    <iframe
      {...props}
      width="100%"
      height="1080"
      title={props.src}
      allowFullScreen
    ></iframe>
  );
}

So, I wanted to do something like, if it’s being opened in cordova, do this instead:

<a href={Pdf} without rel="noopener noreferrer" target="_blank">

Any other suggestions would be welcome.