In On-Demand GPS Provisioning Widget Thingy: Step 3 we published the model developed in On-Demand GPS Provisioning Widget Thingy: Step 2 . Now for some WAB hacking! In WAB on your hard drive, find ...\server\apps\2\widgets\Geoprocessing.
Edit resultRendererManager.js line 55 to be as so:
text = '<a target="_blank" href="' + value.value.url + '">Get My Data</a>';
Back in WAB, add a GP Widget to the Header Controller. Note that I am able to get this to work with https and IWA, despite Esri warning otherwise.
Check Allow to Export Results and Output May have...
Now run the tool!