Web application access user's file system

Question

I am creating a web application for my client. The application will be installed on a dedicated server within corporate network. He wants to see the list of his local files

Answer 1

Finally I did a compilation of some quotations and it is done..

https://en.wikipedia.org/wiki/JavaScript#Security

scripts run in a sandbox in which they can only perform Web-related actions, not general-purpose programming tasks like creating files

https://www.us-cert.gov/publications/securing-your-web-browser

JavaScript, also known as ECMAScript, is a scripting language that is used to make websites more interactive. There are specifications in the JavaScript standard that restrict certain features such as accessing local files.

https://developer.mozilla.org/en-US/docs/Web/API/File_System_API/Introduction#restrictions

Because the file system is sandboxed, a web app cannot access another app's files. You also cannot read or write files to an arbitrary folder (for example, My Pictures and My Documents) on the user's hard drive.