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In its current state, this attributes works fine and allows to create tooltip, contextual menu, etc.
But it is very tricky to use since it requires a HTMLElement. The workaround I use is to put the widget in a section which is refreshed after the view is ready.
It would be much better if this attribute was a string containing the id of the reference.
fix #718 Touch:Dialog widget and domReference attribute
feat #718 option to use `referenceId` in `@touch:Dialog`
Close #718. Close #726.