Removing layers (cancel sending of layers)

[petterik]

Use case: Does:

• User loads a page. Sends a huge request with everything on the page. Clicks on a different route. Expected:
• To see the new route with data as soon as possible. Happens when we can only send one request at a time:
• User will need to wait for the first request to finish + get merged into app state.

Solution(?):

• Cancel the first request, dropping whatever would have been received. Send a new request with a query for the current route.