Open file's window from browser

[Gnarlodious]

Is there a way with Javascript to click in the browser and open a filesystem
directory?
If so, will it work cross-platform?

-- Gnarlie

 

[Neredbojias]

With neither quill nor qualm, Gnarlodious quothed:

Is there a way with Javascript to click in the browser and open a filesystem
directory?
If so, will it work cross-platform?

If you mean online, the server can control that option despite your
code.