On the initial loading of the cms page, on the screen with the Ametys logo beating like an heart, the javascript elements on the page are not fully initialized. When right clicking, main/plugin-core-ui/resources/js/Ametys/ui/tool/layout/ZonedTabsToolsLayout.js intercept the event (method _onAnyMouseDown line 122) but this._panelHierarchy is still undefined at this time.

The javascript error interrupts and breaks the loading of the cms

Uncaught TypeError: Cannot read property 'cl' of undefined
at constructor._onAnyMouseDown (ZonedTabsToolsLayout.js:122)
at constructor.fire (ext-all.js:21915)
at constructor.fire (ext-all.js:36717)
at constructor.publish (ext-all.js:36677)
at constructor.publishDelegatedDomEvent (ext-all.js:36699)
at constructor.doDelegatedEvent (ext-all.js:36743)
at constructor.onDelegatedEvent (ext-all.js:36730)