No outlines in iframe

Hello,
I am using React Scan with Storybook. By setting allowInIframe: true, I can see the toolbar and other features, but it does not render outlines in the iframe. This is unexpected because I see outlines with the same options passed to scan in a React Router app.

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in react router app i can see a div with attr ( maybe data-react-scan=true ) but in storybook iframe DOM this div is not available