I'm using WAB 1.3 with the eSearch and AttributeTable widgets loaded. When I select features using the eSearch selection, I always get a series of "Request canceled" errors:
The url in the error will be something like:
"//xyz/proxy.ashx?https://utility.arcgisonline.com/arcgis/rest/services/Geometry/GeometryServer/relation?f=json&geometries1=%7B%22geometryType%22%3A%22esriGeometryPolygon%22%2C%22.....
This is followed by an error saying, "Observable store detected, but no sort order specified. you may experience quirks when adding/updating items. These can be resolved by setting a sort order on the list or grid.
This appears to be an AttributeTable error.
