Interact.js not working with elements in iframes if they was created in parent window

Actual behavior

I have an iframe inserted into my main site and I need to create elements inside the iframe from the parent context. But interact.js doesn't work if I create new elements from the parent context and then insert them in the iframe. In a real application I cannot create nodes from an iframe document, because the elements are created by the framework (Riot.js) and I cannot control the creation of components.

Demo:
https://jsfiddle.net/kachurun/bugqc5dk/79/

Problem on this line:
https://github.com/taye/interact.js/blob/55d5d57c4f1ad2f728109bb839f1ed99a45d8ba1/packages/%40interactjs/utils/is.ts#L29

Because thing really not instance of _window.Element, but instance of win.window.Element.
I'm not sure if I know the correct way to fix this, except to add a check to the parent window, or remove the DOM2 part of the condition.

System configuration

interact.js version: 1.10.3

Start at packages/@interactjs/utils/is.ts line 29 and reproduce the iframe scenario from the linked JSFiddle, where elements created in the parent are inserted into the iframe. Trace the window and Element checks, then verify that interact.js recognizes and handles those elements without breaking existing behavior.