File report on Missing tasks in parallel steps in Web Periodic Background Synchronization

[dontcallmedom-bot]

This pull request was automatically created by Strudy upon detecting errors in Missing tasks in parallel steps in Web Periodic Background Synchronization.

Please check that these errors were correctly detected, and that they have not already been reported in https://github.com/WICG/periodic-background-sync.

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Title: Missing tasks in parallel steps in Web Periodic Background Synchronization
Tracked: N/A
Repo: 'https://github.com/WICG/periodic-background-sync'

While crawling Web Periodic Background Synchronization, the following algorithms fire an event, or resolve or reject a Promise, within a step that runs in parallel without first queuing a task:

• The Process periodic sync registrations algorithm fires an event directly in a step that runs in parallel

See Dealing with the event loop in the HTML specification for guidance on how to deal with algorithm sections that run in parallel.

_{Cc @dontcallmedom @tidoust}

_{This issue was detected and reported semi-automatically by Strudy based on data collected in webref.}