Calls setState after the component is unmounted

[jaydenseric]

<ReactMapGL /> internally calls setState after the component is unmounted, triggering a React warning like this:

Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in the componentWillUnmount method.
    in InteractiveMap

You can reproduce this issue by putting a basic map like this on a page:

import ReactMapGL from 'react-map-gl'

<ReactMapGL
  width="100px"
  height="100px"
  mapboxApiAccessToken="…"
/>

Then from another page, quickly navigate to the page and back again within a few seconds.

[Pessimistress]

Fixed in 4.0.11