Uncaught TypeError: Cannot read property 'length' of undefined

CPod version: 1.27

Platform: MacOS 10.13.1

Install type (.deb, Snap, etc.): dmg

Description:

Hello @z------------- While working on #110 I encountered this error in the console. Sorry but I really don't have time to investigate more.

Did the bug only appear after a CPod update? Version before, after: From at least 1.26

Steps to reproduce:

Open CPod
Open Developer Tools with cmd+shift+i
Look in the console

*Other helpful information (e.g. Developer Tools console log, screenshots) if possible:

Uncaught TypeError: Cannot read property 'length' of undefined
    at calculateCanvasDimens (cbus-ui.js:1139)
    at cbus-ui.js:663
calculateCanvasDimens @ cbus-ui.js:1139
(anonymous) @ cbus-ui.js:663
requestAnimationFrame (async)
func @ cbus-ui.js:662

z------------- / CPod

Uncaught TypeError: Cannot read property 'length' of undefined #111