Viewport View3D sometimes needs window resize to draw properly

[gzt036]

I got an issue that sometimes the view3D component won't draw, but once I resize the window it draws.

I checked the code and it might be related to file VTKViewport/view3D.js line 108
// TODO: Not sure why this is necessary to force the initial draw
this.genericRenderWindow.resize();

I wonder if you have figured out why this is necessary, could you explain what happens here?

Also, can I trigger an event or something to call this resize() call forcefully? hopefully that will fix the problem I encountered.