Problem: WFS query errors
Affects: WFS queries with CQL filters or geojson as output format
Description: ArcGIS Server 10.3.1 doesn’t support CQL filters or geojson output formats.
Workaround: The ArcGIS REST API supports a range of standard querying and filtering options, such as an SQL-like WHERE clause; filtering features by a bounding box; and querying features that are contained within, intersect, or fall within a given distance of (and more) a given point, envelope, polygon, or line. Refer to DataWA Toolkit https://toolkit.data.wa.gov.au/hc/en-gb/articles/115000819754-How-To-Download-Geospatial-Data-using-GDAL-and-ogr2ogr