PR Checklist

• The changes have been tested (for bug fixes / features).
• Docs in NexT website have been added / updated (for features).

PR Type

• Bugfix.
• Feature.
• Improvement.
• Code style update (e.g. formatting, linting).
• Refactoring (no changes to functionality and APIs).
• Documentation.
• Translation.
• Other... Please describe:

What is the current behavior?

Issue resolved:

On Edge HTML writting like

const { async = false } = {}

will cause Expected identifier, string or number.

And it cannot be fixed by babel.

So just change it to

const async = a.async ?? false;

and it works fine.