Your words: > One might be tempted to use the thenable interface (don’t!): The code that followed was fine and it had no race condition. > Seems like it woul

Your words: > One might be tempted to use the thenable interface (don’t!): The code that followed was fine and it had no race condition. > Seems like it would work, but it actually only waits for the promises returned from item() and not the .then() part! This is the wrong part. The blockness is irrelevant.