gistfile1.txt

diff --git a/client/src/mvc/visualization/chart/chart-client.js b/client/src/mvc/visualization/chart/chart-client.js
index 4a030f5c10..4891596ef2 100644
--- a/client/src/mvc/visualization/chart/chart-client.js
+++ b/client/src/mvc/visualization/chart/chart-client.js
@@ -46,6 +46,7 @@ export default Backbone.View.extend({
         })
             .done((dataset) => {
                 this.dataset = dataset;
+                console.debug("LOADING CHART WITH THIS", this);
                 this.chart.load();
             })
             .fail((response) => {
diff --git a/client/src/mvc/visualization/chart/views/menu.js b/client/src/mvc/visualization/chart/views/menu.js
index e1f259704c..283c329767 100644
--- a/client/src/mvc/visualization/chart/views/menu.js
+++ b/client/src/mvc/visualization/chart/views/menu.js
@@ -134,14 +134,14 @@ export default Backbone.View.extend({
     },
 
     render: function () {
-        var visible = this.model.get("visible");
+        const visible = this.model.get("visible");
         this.app.$el[visible ? "removeClass" : "addClass"]("charts-fullscreen");
-        this.execute_button.model.set("visible", visible && !!this.app.chart.plugin.specs.confirm);
+        this.execute_button.model.set("visible", visible && !!this.app.chart.plugin.specs?.confirm);
         this.save_button.model.set("visible", visible);
         this.export_button.model.set("visible", visible);
         this.right_button.model.set("visible", visible);
         this.left_button.model.set("visible", !visible);
-        var exports = this.app.chart.plugin.specs.exports || [];
+        const exports = this.app.chart.plugin.specs?.exports ?? [];
         this.export_button.collection.each((model) => {
             model.set("visible", exports.indexOf(model.get("key")) !== -1);
         });
diff --git a/config/plugins/visualizations/ngl/src/ngl.js b/config/plugins/visualizations/ngl/src/ngl.js
index b9d92f73be..7899c56dae 100644
--- a/config/plugins/visualizations/ngl/src/ngl.js
+++ b/config/plugins/visualizations/ngl/src/ngl.js
@@ -21,7 +21,7 @@ window.bundleEntries.load = function (options) {
     stage_parameters = { ext: dataset.extension, defaultRepresentation: true };
     const safe_download_url = `${options.root}${dataset.download_url}`;
     try {
-        stage.loadFile(safe_download_url, stage_parameters).then(function (component) {
+        stage.loadFile(dataset.download_url, stage_parameters).then(function (component) {
             component.addRepresentation(settings.get("mode"), representation_parameters);
             options.chart.state("ok", "Chart drawn.");
             options.process.resolve();