Usage of Document Viewer

Hello Community, i want to use the File Document Viewer to display a PDF. I created a specialisation of System.FileDocument with the name “MyDocument”. I embedded the File Document Viewer together with the File manager in a data view and created an “Upload Microflow” to commit the PDF.  When i view the App (created with Mendix Studio Pro 8.2.1) in Google Chrome (Version 71.0.3578.98)  the File Document Viewer only shows three points and the frame.  The settings in the file viewer:     The appearence in the browser: Do you know if i have to change some settings in the Browser or have the wrong settings in Mendix ?   Many thanks in advance! Jan
1 answers

Maybe an entity access issue?

Does the user have read access to the given entity?