Re:Web Writable Files API: Simplifying Local File Access
by xrd on Monday November 12, 2018 @04:27PM
(#18436011)
You get access to this if you have written a Chromebook app. If you get a user to install that, there is a clear set of permissions they are accepting. See the section on permissions, which is specified in the app manifest. It is not an open hole for anything running on a Chromebook.
https://developer.chrome.com/apps/fileSystem