impacts screen reader user
[WCAG 1.3.1 level A] [WCAG 4.1.3 level AA]
tested using NVDA on chrome browser
on selecting upload button (w/ files already chosen) user is not advised the overall status of the files or individual files.
A visual user is informed;
This has not been 100% tested, as the upload was not targeted to an end point.
Suggestion: use aria-live
Also note, on selecting the upload button the focus is returned to input, and input says no files.