I can not download attachments in Fiori Client

Hi,

We have a problem with SAP Fiori Client. We developed an application for SAP Fiori.

We want to export (download) pdf files from SAP system to local in SAP Fiori Client. We use oData service.

Firstly, we add this code (HTTP Name = 'Content-Disposition' and HTTP Value = 'attachment; filename=XXX.PDF') to header in oData class.

Then, we want to download pdf file with this code (sap.m.URLHelper.redirect(urlProvidingFile, true));

If we use Google Chrome web browser, file can be downloaded. But if we use Fiori client application in Android Tablet, the file can not be downloaded and nothing happened.

What could be the problem for SAP Fiori Client?

Otherwise, We can properly download our pdf files with Approve Requests BSP application(CA_ALL_APV) in Android Tablet.

Note : You can see Fiori Client log in attachment.