Seeds the browser with a learner who finished the first finishedCount
videos and is currentFraction of the way through the next one.
Opening the route records the tickets of finished videos, so the cleanup
removes those tickets too — otherwise one story's prize would leak into the
next.
Parameters
finishedCount: number
currentFraction: number
Returns ()=>void
A cleanup that removes the seeded progress and its tickets again
Seeds the browser with a learner who finished the first
finishedCountvideos and iscurrentFractionof the way through the next one.Opening the route records the tickets of finished videos, so the cleanup removes those tickets too — otherwise one story's prize would leak into the next.