diff --git a/www-client/src/main/java/fr/agrometinfo/www/client/ui/map/TileSuppliers.java b/www-client/src/main/java/fr/agrometinfo/www/client/ui/map/TileSuppliers.java
index 586ce3f45aa5af0c40c0183eefbf3ec2127ec745..5e4ee58dd3f89bf7291ea0931950469bd2b297e4 100644
--- a/www-client/src/main/java/fr/agrometinfo/www/client/ui/map/TileSuppliers.java
+++ b/www-client/src/main/java/fr/agrometinfo/www/client/ui/map/TileSuppliers.java
@@ -245,6 +245,7 @@ public abstract class TileSuppliers {
         wmtsOptions.setStyle(wmts.getStyle());
         wmtsOptions.setAttributions(wmts.getAttributions());
 
+        wmtsOptions.setCrossOrigin("anonymous");
         wmtsOptions.setProjection(projection);
         wmtsOptions.setWrapX(true);
         wmtsOptions.setTileGrid(createWmtsTileGrid(projection));
@@ -278,6 +279,7 @@ public abstract class TileSuppliers {
      */
     public static Base createOpenTopoMap() {
         final XyzOptions options = new XyzOptions();
+        options.setCrossOrigin("anonymous");
         options.setUrl("https://{a-c}.tile.opentopomap.org/{z}/{x}/{y}.png");
         options.setUrl("https://agroclim.inrae.fr/tiles/xyz/opentopo/{a-c}/{z}/{x}/{y}.png");
         options.setAttributions(CSTS.osmOpenTopoMapAttributions());
@@ -298,6 +300,7 @@ public abstract class TileSuppliers {
     public static Base createOsm() {
         // create a OSM-layer
         final XyzOptions options = new XyzOptions();
+        options.setCrossOrigin("anonymous");
         // https://wiki.openstreetmap.org/wiki/FR:Serveurs/tile.openstreetmap.fr
         if (LocaleInfo.getCurrentLocale().getLocaleName().equals("fr")) {
             options.setUrl("https://{a-c}.tile.openstreetmap.fr/osmfr/{z}/{x}/{y}.png");
@@ -323,6 +326,7 @@ public abstract class TileSuppliers {
      */
     public static Base createPiano() {
         final XyzOptions options = new XyzOptions();
+        options.setCrossOrigin("anonymous");
         if (LocaleInfo.getCurrentLocale().getLocaleName().equals("fr")) {
             options.setUrl("https://{a-c}.piano.tiles.quaidorsay.fr/fr/{z}/{x}/{y}.png");
             options.setUrl("https://agroclim.inrae.fr/tiles/xyz/piano-fr/{a-c}/{z}/{x}/{y}.png");