... test for initCanvas needs to test that it correctly sets Quagga.canvas.dom and Quagga.canvas.ctx, and that those each have an image and an overlay property.

Per #151 once implemented, if you don't have a DOM drawingBuffer then Quagga.canvas.dom.overlay and Quagga.canvas.ctx.overlay should be nullish, there should always be a Quagga.canvas.dom.image and Quagga.canvas.ctx.image when in browse

2018-01-02 09:38:15,453 - FiscalberryApp - INFO - *** Websocket Server Started as HTTP at 127.0.1.1 port 12000***

2018-01-02 09:38:24,664 - FiscalberryApp - INFO - new connection


2018-01-02 09:38:32,857 - FiscalberryApp - INFO - ----- - -- - - - ---

2018-01-02 09:38:32,857 - FiscalberryApp - INFO - {"findAvaliablePrinters":""}

2018-01-02 09:38:32,857 - root - INFO - Iniciando pr