ESRI WFS Layer API , when layer namespace is URN in WFS service

[NikhilVyas]

Hello , I need to use ESRI WFSlayer api , my WFS service namespace is  a URN instead of URL ad the ESRI api doesnt accept URN in nsLayerName object.. any ideas or pointers ?

Added sample code from ESRI

require(["esri/map", "esri/InfoTemplate","esri/layers/WFSLayer", "esri/config", "dojo/domReady!"], function(Map, InfoTemplate, WFSLayer, esriConfig) {
    map = new Map("map", {
      basemap: "topo",
      center: [-122.836, 42.346],
      zoom: 13
    });

    var opts = {
        "url": "http://suite.opengeo.org/geoserver/wfs",
        "version": "1.1.0",
        "nsLayerName": "http://medford.opengeo.org|citylimits",
        "wkid": 3857,
        "mode": "SNAPSHOT",
        "maxFeatures": 100,
        "showDetails": true,
        "infoTemplate": new InfoTemplate()             
    };

    esriConfig.defaults.io.proxyUrl = "/proxy/";

    var layer = new WFSLayer(opts);
    map.addLayer(layer);

  });