improvement: support multi window apps when detecting if target is <canvas> element #584
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trezy
added
enhancement
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It is possible that the app is rendered inside another window via react portals. (https://pietrasiak.com/creating-multi-window-electron-apps-using-react-portals)
If this is the case, it is owned by a different document, so will be instance of otherDocument.defaultView.HTMLCanvasElement instead of simply HTMLCanvasElement.
(defaultView is the window object of the other document)