Request for graceful shutdown of the Guest UI (Host → Guest UI).
The host MUST send this request before tearing down the UI resource, for any
reason including user action, resource reallocation, or app closure. This gives
the Guest UI an opportunity to save state, cancel pending operations, or show
confirmation dialogs.
The host SHOULD wait for the response before unmounting the iframe to prevent
data loss.
Request for graceful shutdown of the Guest UI (Host → Guest UI).
The host MUST send this request before tearing down the UI resource, for any reason including user action, resource reallocation, or app closure. This gives the Guest UI an opportunity to save state, cancel pending operations, or show confirmation dialogs.
The host SHOULD wait for the response before unmounting the iframe to prevent data loss.
See
app-bridge.AppBridge.sendResourceTeardown for the host method that sends this