diff --git a/addons/web_editor/static/src/js/backend.js b/addons/web_editor/static/src/js/backend.js
index 17ce8c3c1a1..36cd33c60fd 100644
--- a/addons/web_editor/static/src/js/backend.js
+++ b/addons/web_editor/static/src/js/backend.js
@@ -337,7 +337,7 @@ var FieldTextHtml = widget.extend({
                 $("body").toggleClass("o_form_FieldTextHtml_fullscreen");
                 var full = $("body").hasClass("o_form_FieldTextHtml_fullscreen");
                 self.$iframe.parents().toggleClass('o_form_fullscreen_ancestor', full);
-                self.resize();
+                $(window).trigger("resize"); // induce a resize() call and let other backend elements know (the navbar extra items management relies on this)
             });
 
         this.$body.on('click', '[data-action="cancel"]', function (event) {