Steps to Reproduce

Run an embedded ZK app

Run the zEmbedded.destroy(containerId) command at client-side to destroy the ZK app

Current Result

zk.Desktop.all[dtid] still exists.

If an external script cause a global invocation of window listeners such as bookmark change or popHistoryState, since there is no valid desktop as target of the global invocation, the zAu.send function will loop over the Desktops in zk.Desktop.all and fire events to each, which include the currently removed desktop.

Expected Result

Destroyed desktops cannot receive events

Debug Information

https://github.com/zkoss/zk/blob/master/zk/src/archive/web/js/zk/au.ts#L460

Workaround

remove the desktop from zk.Desktop.all manually upon calling zEmbedded.destroy()