I tried the test app on my Nexus 6P with Chrome. I get an error : “Format de xxx non valide”. xxx is a number that is incremented with each download. I cannot download the picture.
perhaps it is the webapp that failed. I am no longer able to download even the PDF file. I thought that perhaps something was wrong with my session, so I disconnected and waited some 15 minutes before I retried. I cannot download either file at this time.