Platform capabilities - Startale Documentation

Your Mini App runs in a sandboxed cross-origin iframe. Some capabilities come from the host through the SDK, others are standard web APIs the host allows on the iframe. Use this page to check what is available.

Capability matrix

Capability	How to use it	Works in Startale App	Details
File download	`<a download>`, Blob URL	Yes	Files and sharing
Native share sheet	`navigator.share()`	Yes	Files and sharing
Camera and microphone	`sdk.actions.requestCameraAndMicrophoneAccess()`, then `getUserMedia`	Yes	SDK actions
Clipboard read and write	`navigator.clipboard`	Yes	Iframe environment
`localStorage`, `IndexedDB`, `sessionStorage`	Standard web APIs	Yes	Storage
Cookies	`document.cookie`, `Set-Cookie`	No	Storage
Popups and new tabs	`window.open`, `sdk.actions.openUrl()` (`http` and `https` only)	Yes	Iframe environment
`alert`, `confirm`, `prompt`, `window.print()`	Standard web APIs	No, use `<dialog>` instead	Iframe environment
Navigating the top window	`window.top.location`	No	Iframe environment

Preview and production can differ

The developer preview uses a narrower policy than the production catalogue: navigator.share() is not granted there. See Iframe environment.