How to delete a database in WebSQL programmatically?

Question

I am new to Web SQL database and I use it to save data in a local database in a web page.

　I can create a database

Answer 1

Spec says:

4.1 Databases

Each origin has an associated set of databases. Each database has a name and a current version. There is no way to enumerate or delete the databases available for an origin from this API.