Add contains check for canvas when removing

[Bwc9876]

If we're running in a context where the current document.body has been switched, done will still try to remove the canvas from the new document.body, which will never work. This PR adds a check to ensure the canvas is contained within the body before removing it.

[catdad]

Makes sense, thanks for contributing!

[catdad]

It's worth mentioning though, body doesn't generally reset itself, you probably asked for that to happen one way or another, and it's generally a good idea to call confetti.reset() when doing that (as well as probably clean up other things too... though I can understand how that might be inconvenient to do).

[catdad]

This was released in 1.9.3

[Bwc9876]

It's worth mentioning though, body doesn't generally reset itself, you probably asked for that to happen one way or another, and it's generally a good idea to call confetti.reset() when doing that (as well as probably clean up other things too... though I can understand how that might be inconvenient to do).

Ah gotcha, thank you!