Null value in URL from WFS JSON

[mrkricmat]

When received url attribute with null value nothing is shown in dialog window. No data from other attributes is shown. WFS result to the origowebpage is:

{"type":"FeatureCollection","features":[{"type":"Feature","id":"School.1","geometry":{"type":"Point","coordinates":[155677.53805289,6259512.58338944]},"geometry_name":"geom","properties":{"qgs_fid":1,"pkuid":1,"Namn":"TEST","url":null}}],"totalFeatures":1,"numberMatched":1,"numberReturned":1,"timeStamp":"2022-06-29T09:23:03.022Z","crs":{"type":"name","properties":{"name":"urn:ogc:def:crs:EPSG::3008"}}}

WFS reguest format: ....&outputFormat=application/json&srsname=EPSG:3008....