Vlad Create a list of integral shortcuts, then have another preference named "Block website keyboard shortcuts." Most important would be to make the shortcuts transparent, because currently even though Netflix does not define command+M, the key itself does not allow to minimize the video while netflix is showing, and only mutes the video on netflix.
So Cmd+Q, W, R, T, Y, U, O, P, A, S, D, F, H, L, Z, X, C, V, N, M are all integral shortcuts. Basically everything with command. Perhaps certain "leniencies" can be created for such, and only Q, W, R, T, N, L and M are cnosidered integral shortcuts.