Hello,
I had this issue on windows 11 pro using chrome where the dragging & dropping a pdx.zip file does not work, it will always say invalid file type, however selecting the same file manually using the common dialog does work.
It would seem the problem is this piece of code in the drop event handler:
It only checks one specific mime type... But apparently on windows "application/x-zip-compressed" is used as you can see in this screenshot where i had set a breakpoint
You guys should check on at least this extra mime type and potentially a few others when looking at the list here for mime types that could be used for a zip file