Experimental options should be optional instead of required ?

[mathieunicolas]

Strict typescript raises a problem when using experimental (in my case) experimental.clientDB: true.

Since all three properties are not optional in their declaration, using one experimental feature raises a TS problem.

🔗 Linked issue

❓ Type of change

• [x] 🐞 Bug fix (a non-breaking change that fixes an issue)

📚 Description

📝 Checklist

• [x] I have linked an issue or discussion.