I had the same issue:
http://stackoverflow.com/questions/41084433/chrome-v55-breaks-qx-ui-form-menubutton
turns out Chrome added pointer events and there is a patch to fix this in
Events.js: https://github.com/qooxdoo/qooxdoo/pull/9219
*Jonathan Wolfe** | Lead Meteorologist*
*Charlesto
Hi,
Chrome offers since version 55 native pointer events, which are not
detected in qooxdoo previous to this PR on github:
https://github.com/qooxdoo/qooxdoo/pull/9219
This leads to native pointer events being fired and also artificial
pointer events.
Please also note corresponding issue
https