Notification of UI size changes (bidirectional: Guest ↔ Host).
Guest UI → Host: Sent by the Guest UI when its rendered content size changes,
typically using ResizeObserver. This helps the host adjust the iframe container.
If app.App is configured with autoResize: true (default), this is sent
automatically.
Host → Guest UI: Sent by the Host when the viewport size changes (e.g.,
window resize, orientation change). This allows the Guest UI to adjust its layout.
Notification of UI size changes (bidirectional: Guest ↔ Host).
Guest UI → Host: Sent by the Guest UI when its rendered content size changes, typically using ResizeObserver. This helps the host adjust the iframe container. If app.App is configured with
autoResize: true(default), this is sent automatically.Host → Guest UI: Sent by the Host when the viewport size changes (e.g., window resize, orientation change). This allows the Guest UI to adjust its layout.
See