Document tabs and actions (upper actions) are not ajaxified by default but this can be activated thanks to a configuration service property (see
This activation will have an impact on functional tests (webdriver, funkload, selenium).
Ajaxfied tabs behaviour is controlled with:
Tabs in Nuxeo Platform Web UI are now ajaxified by default. This behaviour can be changed with the application property "nuxeo.jsf.useAjaxTabs".