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FAQPlatform notes

Preview your app

Use Preview on the right to see the web app as it is built.

When the project includes a web app, the right pane defaults to Preview. While the AI is Building, the pane may show Building your app… or Opening your app…, then the clickable UI.

If preview fails, the pane explains Preview failed to start. or a timeout. Retry from that message — you do not need to leave the project.

What you see in Preview is the current draft, not the published version. To give other people a stable URL, publish.