Setting canvas and background color in setup() not working

p5.js Beginners
2

in p5.js i not see a problem.

https://editor.p5js.org/kll/sketches/hXy_Ij1gB
for resize…
https://editor.p5js.org/kll/sketches/SkZFY5Qg4

also try Processing 3.5.3 p5.js mode OK

so you need to tell us more about your environment…

when you say draw works??
and it starts with a background or image
you might never see the background set from setup()