three.js - After setting preserveDrawingBuffer:true, canvas is only rendered after renderer resize -

I have recently preserved the dragging buffer: to be able to generate screenshots via dotUAR () WebGill Renderer is perfect for creation. However, now my canvas remains white until I resize windows (and therefore renderer) manually, rendering works fine afterwards.

I am creating WebGL renderer with the following options:

  renderer = new three. Webgil renderer ({preserveDrawingBuffer: true, antilles: true});  

If the antelius or drawingbuffer is saved, the scene is immediately provided.

The example stripped below by using A.js v68 can be accessed via firefox v36 show behavior described above, chrome v41 seems to work.

uses R71 and shows some weird white rectangles