[11.0][FIX] web_export_view: Issue #1099

web_export_view/static/src/js/web_export_view.js

@@ -49,15 +49,18 @@ odoo.define('web_export_view', function (require) {
             var export_columns_keys = [];
             var export_columns_names = [];
             var column_index = 0;
-            var column_header_selector;
+            var column_header_selector = '';
+            var isGrouped = view.renderer.state.groupedBy.length > 0;
             $.each(view.renderer.columns, function () {
                 if (this.tag == 'field' && (this.attrs.widget === undefined || this.attrs.widget != 'handle')) {
                     // non-fields like `_group` or buttons
                     export_columns_keys.push(column_index);
-                    column_header_selector = '.o_list_view > thead > tr> th:not([class*="o_list_record_selector"]):eq('+column_index+')';
+                    var css_selector_index = isGrouped
+                        ? column_index+1 : column_index;
+                    column_header_selector = '.o_list_view > thead > tr> th:not([class*="o_list_record_selector"]):eq('+css_selector_index+')';
                     export_columns_names.push(view.$el.find(column_header_selector)[0].textContent);
                 }
-                column_index ++;
+                ++column_index;
             });
             var export_rows = [];
             $.blockUI();