The chrome feature "Disallow sync XHR in page dismissal" (currently (2019-01-31) under development) is planning to prevent sync ajax requests during beforeunload.
This will prevent ZK's current mechanism to clean up desktops when reloading / navigating pages / closing the browser.
This will affect almost all current and past ZK versions.
currently reproduced with chromium version:
- "Version 74.0.3690.0 (Developer Build) (64-bit)"
- "Version 74.0.3705.0 (Developer Build) (64-bit)"
recent builds available here: https://download-chromium.appspot.com/