2 files changed, 28 insertions, 3 deletions

diff --git a/addons/web/static/src/js/core/widget.js b/addons/web/static/src/js/core/widget.js
index a089f8876fe..8b827147450 100644
--- a/addons/web/static/src/js/core/widget.js
+++ b/addons/web/static/src/js/core/widget.js
@@ -214,13 +214,17 @@ var Widget = core.Class.extend(mixins.PropertiesMixin, ServicesMixin, {
      * Hides the widget
      */
     do_hide: function () {
-        this.$el.addClass('o_hidden');
+        if (this.$el) {
+            this.$el.addClass('o_hidden');
+        }
     },
     /**
      * Displays the widget
      */
     do_show: function () {
-        this.$el.removeClass('o_hidden');
+        if (this.$el) {
+            this.$el.removeClass('o_hidden');
+        }
     },
     /**
      * Displays or hides the widget
@@ -229,7 +233,7 @@ var Widget = core.Class.extend(mixins.PropertiesMixin, ServicesMixin, {
     do_toggle: function (display) {
         if (_.isBoolean(display)) {
             display ? this.do_show() : this.do_hide();
-        } else {
+        } else if (this.$el) {
             this.$el.hasClass('o_hidden') ? this.do_show() : this.do_hide();
         }
     },
diff --git a/addons/web/static/tests/core/widget_tests.js b/addons/web/static/tests/core/widget_tests.js
index 1c1c59f1d52..dc704abe274 100644
--- a/addons/web/static/tests/core/widget_tests.js
+++ b/addons/web/static/tests/core/widget_tests.js
@@ -450,6 +450,27 @@ QUnit.module('core', {}, function () {
         parent.destroy();
     });
 
+    QUnit.test("calling do_hide on a widget destroyed before being rendered", async function (assert) {
+        assert.expect(1);
+
+        const MyWidget = Widget.extend({
+            willStart() {
+                return new Promise(() => {});
+            }
+        });
+
+        const widget = new MyWidget();
+        widget.appendTo(document.createDocumentFragment());
+        widget.destroy();
+
+        // those calls should not crash
+        widget.do_hide();
+        widget.do_show();
+        widget.do_toggle(true);
+
+        assert.ok(true);
+    });
+
     QUnit.test('start is not called when widget is destroyed', function (assert) {
         assert.expect(0);
         const $fix = $("#qunit-fixture");