Le portail francophone de la géomatique

// Configuration de la connexion au service d'impression.
    var printProvider = new GeoExt.data.PrintProvider({
        method: "GET",
        capabilities: printCapabilities, 
        customParams: {
            mapTitle: "Navigueo",
            comment: "olpmijk"
        }
    });

// Bouton d'impression.
    print = new Ext.Button({
        iconCls: 'print',
        tooltip: "imprimer la carte",
        handler: function(){
            // Fenêtre d'aperçu avant impression.
            printDialog = new Ext.Window({
                title: "Aperçu avant impression",
                width: 500,
                autoHeight: true,
                items: [{
                    xtype: "gx_printmappanel",
                    map: {controls: [new OpenLayers.Control.Navigation()]},
                    sourceMap: mapPanel, // mapPanel est mon objet GeoExt contenant la carte.
                    printProvider: printProvider
                }],
                bbar: ['->',
                    {
                    text: "Exporter en PDF",
                    handler: function(){ 
                        printDialog.items.get(0).print(); 
                    }
                }]
            });
            printDialog.show();
            
        }
    });

<script src="http://ip-de-mon-serveur/geoserver/pdf/info.json?var=printCapabilities"></script>

   - !dnsMatch
     host: tile.openstreetmap.org

org.mapfish.print.InvalidJsonValueException: spec.layers[0].baseURL has an invalid value: http://a.tile.openstreetmap.org/ (spec.layers[0].baseURL has an invalid value: http://a.tile.openstreetmap.org/)

http://demo.opengeo.org/geoserver/pdf/info.json?var=printCapabilities