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

The localdatabase files are stored in your Windows user settings under Application Data > Google > Chrome > User Data > Default > databases.

So manually deleting them is theoretically possible. This is only useful while testing / developing on your own computer, since when another user opens your app/site, it is unlikely to have file system access.

However, even though you can find the files and delete them, the data sticks around. I've tried it with Chrome both open and closed and all chrome processes ended, and yet the browser inspector keeps showing me my old database with all the unwanted fields and data in it.