Index: trunk/src/org/openstreetmap/josm/io/UrlPatterns.java
===================================================================
--- trunk/src/org/openstreetmap/josm/io/UrlPatterns.java	(revision 19384)
+++ trunk/src/org/openstreetmap/josm/io/UrlPatterns.java	(revision 19385)
@@ -27,5 +27,5 @@
         COMPRESSED_FILE(".*/(.*\\.(json|geojson)(\\."+COMPRESSED+")?)"),
         /** URL of generic service providing geojson as output format */
-        FORMAT_GEOJSON (".*format=geojson.*");
+        FORMAT_GEOJSON (".*f(ormat)?=geojson.*");
 
         private final String urlPattern;