Getting error TypeError: "ancestor.contains is not a function"

[leszekt8007]

Hi, We are getting the following error after migrating from dojo 1.7 to 1.16.2

dojo/parser::parse() error TypeError: "ancestor.contains is not a function"
    isDescendant Dojo
    check dijit/focus.js:58
    Dojo 3
        hitch
        dispatcher
        destroy
    _createDojoDeferredTypes datastage/widget/_DeferredLoadMixIn.js:116
    startup datastage/widget/layout/TabContainer.js:66
    startup dijit/_WidgetsInTemplateMixin.js:101
    forEach Dojo
    startup dijit/_WidgetsInTemplateMixin.js:99
    startup dijit/_WidgetBase.js:573
    forEach Dojo
    startup dijit/_WidgetBase.js:571
    inherited__debug Dojo
    startup dijit/layout/_ContentPaneResizeMixin.js:54
    inherited__debug Dojo
    startup dijit/layout/ContentPane.js:203
    startup dijit/_WidgetBase.js:573
    forEach Dojo
    startup dijit/_WidgetBase.js:571
    inherited__debug Dojo
    startup dijit/layout/_LayoutWidget.js:60
    inherited__debug Dojo
    startup dijit/layout/LayoutContainer.js:58
    startup dijit/_WidgetsInTemplateMixin.js:101
    forEach Dojo
    startup dijit/_WidgetsInTemplateMixin.js:99
    Dojo 14
        onConstruct
        forEach
        onConstruct
        signalListener
        then
        _instantiate
        p
        signalListener
        then
        parse
        hitch
        onEvent
        processQ
        detectReady
dojo/parser.js:900:14
    Dojo 9

It looks like a widget is passed to isDescendant() while the only accepted values are DOM ID string or a DOM node.
See the discussion in the issue that we have opened regarding. isDescendant function.
dojo/dojo#375

[msssk]

@leszekt8007 Thank you for reporting this. If you are able to provide a test case it will be a big help in debugging this.