VSCode and PlotlyJS

I ran this code in VSCode and it never stops running! Can someone tell me what’s happening?

using PlotlyJS, RDatasets
iris = RDatasets.dataset("datasets", "iris")
x = Vector(iris[:,1])
y = Vector(iris[:,2])
z = Vector(iris[:,3])
plot(scatter3d(x=x, y=y, z=z))