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SEP: Host Backed Navigation #147
Description
Thoughts on introduce host-backed navigation to the so that in-iframe routing (e.g., React Router) stays in sync with the host’s navigation controls and history? This enables intuitive forward/back behavior. For example, the ChatGPT Apps SDK mirrors the iframe’s history into ChatGPT.
Activity
rodincave commentedon Dec 15, 2025
Agree it would be very useful to have!
ochafik commentedon Jan 21, 2026
@khandrew1 is this happening in fullscreen mode?
khandrew1 commentedon Jan 21, 2026
@ochafik Display mode shouldn't matter. In ChatGPT the browser's native buttons handle navigation in the iframe.
For example if you navigated to a checkout page in the widget, you can click the browser's back button to navigate back to the shop page.
rodincave commentedon Jan 21, 2026
OpenAI's Apps SDK plugs into the browser's navigation APIs: https://developers.openai.com/apps-sdk/build/chatgpt-ui/ (section Use host-backed navigation)