Using the Capability API Export() Method in a Mashup to Export CSV Data Does Not work in Safari on the iPad

A mashup has been built that uses the Capability API export() method to allow users to export CSV Data from Qlik objects.

Native CSV data export works correctly from the Hub on both Desktop and mobile devices, and a mashup using the export() method works correctly on Desktop and on Chrome on mobile devices.

However, when using Safari on the iPad the file does not download from the mashup--and the Engine Audit logs show that the export was successful on the server:

24900    16.5.6.0    20180411T164549.053+0100    SomeQlikSenseServer    33603a4a-3662-4225-a969-97af2e22f804    20180411T164549.069+0200    12.34.13.0    Command=Export CSV;Result=0;ResultText=    ae4b4167-32da-40e7-b6b9-02132db7c955    e30319c0-6d83-411c-9c6f-c20bbcd1c469    22    someDomain    someUser    aBcDe    Not available    Engine    Not available    ExportData    Export CSV    0    Exported Object aBcDe of type table. Elapsed time: 17ms    33603a4a-3662-4225-a969-97af2e22f804

Environments:

• Qlik Sense Enterprise, Sept2017 Patch 2
• iPad iOS 11
• Safari mobile browser

Safari blocks pop-ups silently when "Block Pop-Ups" is enabled, so it appears that when trying to export data nothing happens at the client.

This is a Safari configuration issue.

1. Go to Settings > Safari > General and uncheck "Block Pop-Ups".
2. Initiate the download. Safari will now alert the user a pop-up is being opened when the user tries to export data.
3. Allow the pop-up. A new tab is opened, previewing the csv data. 
4. Download the file like any other on the iPad with Safari; e.g., click the share icon in the browser and send the file to an app (such as email, or a cloud storage service) in order to download it.

Note: Qlik does NOT support the 3^rd party software mentioned and used in this documentation. Please use them at your own discretion and, if concerned, contact the proper IT team within your company to verify the ability to use non-Qlik related software in the environment.