Can't upload anything

[DuncanLithgow]

I was trying this file: http://openifcmodel.cs.auckland.ac.nz/_models/2019030617043%20-%20APHS%205-3-19.ifc but I can neither use drag & drop or click to upload.

Firefox v84 on windows

[aothms]

Firefox v84 on windows

That's my regular browser and for me it's working fine (e.g. https://view.ifcopenshell.org)

Can you provide more details? Do you see anything with the development tools ([Ctrl] [Shift] [i]) console window open?

[Cairo555]

It works fine for me, just uploaded a test model.
using Chrome, version: 88.0.4324.104