windowResized() + line(pmouseX, pmouseY, mouseX, mouseY) problem

Hi There
Following this video along I bumped into a problem with no obvious solution:
https://www.youtube.com/watch?v=OIfEHD3KqCg&index=17&list=PLRqwX-V7Uu6bI1SlcCRfLH79HZrFAtBvX
Its a Q&A video that generated another Q!
If you resize the window the drawing made with line() disappears.
edit: testing again I realized that any drawing made like that would disappear with windowResized(). This is bad!
Here is the mini example:

```
function setup() {
canv = createCanvas(windowWidth, windowHeight);
canv.position(0, 0);
stroke(255, 0, 0);
}
function windowResized() {
resizeCanvas(windowWidth, windowHeight);
}
function draw() {
if (mouseIsPressed) {
line(pmouseX, pmouseY, mouseX, mouseY);
}
}
```

I may open an issue in the p5 Github about it. But still, maybe I'm missing something. In the forum no one knew the solution to that.

best regards,
Gil