JS code doesn't work with advanced minify, while there are standard construct 3 functions there

Hello, i have this code

runtime.CanvasManager.prototype.GetDocumentFullscreenMode = function () {return "scale-outer";}.

It works as it should, but if I export the game with adavanced minify it stops working. I've tried all options, I've tried replacing runtime with c3, I've tried uncompressing some parts of the code, I've tried completely uncompressing the whole line of code, but it doesn't work.

My options are:

['runtime.CanvasManager.prototype.GetDocumentFullscreenMode = function () {return "scale-outer";}']

runtime['CanvasManager.prototype.GetDocumentFullscreenMode = function () {return "scale-outer";}']]

runtime.CanvasManager.GetDocumentFullscreenMode = function () {return "scale-outer";}']

['runtime.CanvasManager.GetDocumentFullscreenMode = function () {return "scale-outer";}']

runtime['CanvasManager.prototype.GetDocumentFullscreenMode = function () {return scale-outer;}']

And about 10 other combinations. Nothing works