ArcGIS Enterprise 10.9 Web AppBuilder Screening Widget shapefile export returns /webappviewer/null
I am using the Web AppBuilder Screening widget in ArcGIS Enterprise 10.9. The screening analysis runs successfully, but when I click the shapefile download/export option, the browser redirects to:
/arcgis/apps/webappviewer/null
and returns 404.
Testing completed:
- All layer REST URLs load correctly
- Query capability is enabled
- Screening analysis works
- ExtractDataTask GP service tested directly through REST
- GP job returns esriJobSucceeded
- Output parameter is GPDataFile
- REST output returns a valid ZIP URL
- ZIP downloads successfully when opened directly
Example GP output:
{
"paramName": "Output_Zip_File",
"dataType": "GPDataFile",
"value": {
"url": "https://<server>/arcgis/rest/directories/arcgisjobs/.../scratch/AreaofInterest.zip"
}
}However, the Screening widget UI still tries to open /webappviewer/null.
Has anyone seen this in Enterprise 10.9? Is this a known Screening widget issue, config corruption, or Portal/WebContextURL issue?
