You can use /sandbox/ for writing and testing your own code. Nothing in /sandbox/ will get checked into the repo, except files that end in .example (so don't edit or add those files). To get started run `npm start` and open the index.html

npm start

open http://localhost:9999/sandbox/index.html

In developer console, Sources tab, look for clearCacheForPlayer function. Place a logpoint at function closing. Logpoint content should be:

'middlewareInstances nr', Object.keys(middlewareInstances).length

When one or more players are removed, the number of instances should *NOT* grow.

Add player Remove all players