The ad-hoc definition of a https://w3c.github.io/IndexedDB/#connection-queues could be replaced with a standard https://html.spec.whatwg.org/multipage/infrastructure.html#parallel-queue, as in "let connection_queue be the result of starting a new parallel queue".
The ad-hoc definition of a https://w3c.github.io/IndexedDB/#connection-queues could be replaced with a standard https://html.spec.whatwg.org/multipage/infrastructure.html#parallel-queue, as in "let connection_queue be the result of starting a new parallel queue".