Simple and working solution.
This  code snippet will help you to destroy all dojo widgets.

	window.widgetsDestroy = function(){
		require(['dijit/registry','dojo/query'],function(registry,query){
			query('*[id]').forEach(function(node){
				var widget = registry.byId(node.id);
				if(undefined !== widget){
					widget.destroy();
				}
			});
		});
	}

Use it with :

window.widgetsDestroy();

Suggestions or problems ?

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