Has the Web-Editor a bug when using line in WEBGL renderer?

This code does not draw a line in the P5.js Web-Editor but draws in OpenProcessing and Processing IDE. Should it be reported?

 function setup() {
  createCanvas(windowWidth, windowHeight, WEBGL);

function draw() {
  line(mouseX-width/2, mouseY-height/2, 0, 0, 0, 0);

Now it runs again. This happened before with other issues.
Has anyone else noticed temporary bugs in the Web-Editor?

I found out that this happens when you have the accessibility features turned on in settings (the cog icon)!