diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js b/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
index 48f7dcd6079..05bcb906913 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
@@ -2988,8 +2988,8 @@ export class OdooEditor extends EventTarget {
             }
         }
         if (sel.rangeCount) {
-            const closestStartContainer = closestElement(sel.getRangeAt(0).startContainer, '*');
-            const selectionStartStyle = getComputedStyle(closestStartContainer);
+            const closestStartContainer = closestElement(sel.getRangeAt(0).startContainer);
+            const selectionStartStyle = closestStartContainer && getComputedStyle(closestStartContainer);
 
             // queryCommandState does not take stylesheets into account
             for (const format of ['bold', 'italic', 'underline', 'strikeThrough', 'switchDirection']) {
diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js b/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js
index eeabdf815a4..2b52064733d 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js
@@ -285,22 +285,27 @@ export function getFurthestUneditableParent(node, parentLimit) {
     return nonEditableElement;
 }
 /**
- * Returns the closest HTMLElement of the provided Node
- * if a 'selector' is provided, Returns the closest HTMLElement that match the selector
+ * Returns the closest HTMLElement of the provided Node. If the predicate is a
+ * string, returns the closest HTMLElement that match the predicate selector. If
+ * the predicate is a function, returns the closest element that matches the
+ * predicate. Any returned element will be contained within the editable.
  *
  * @param {Node} node
- * @param {string} [selector=undefined]
- * @returns {HTMLElement}
+ * @param {string | Function} [predicate='*']
+ * @returns {HTMLElement|null}
  */
-export function closestElement(node, selector) {
-    let element = node;
-    while (element && element.nodeType !== Node.ELEMENT_NODE) {
-        element = element.parentNode;
+export function closestElement(node, predicate = "*") {
+    if (!node) return null;
+    let element = node.nodeType === Node.ELEMENT_NODE ? node : node.parentElement;
+    if (typeof predicate === 'function') {
+        while (element && !predicate(element)) {
+            element = element.parentElement;
+        }
+    } else {
+        element = element?.closest(predicate);
     }
-    if (element && selector) {
-        element = element.closest(selector);
-    }
-    return element && element.querySelector('.odoo-editor-editable') ? null : element;
+
+    return element?.closest('.odoo-editor-editable') && element;
 }
 
 /**
diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/powerbox.test.js b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/powerbox.test.js
index 2a5960f1ade..7c1748763cf 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/powerbox.test.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/powerbox.test.js
@@ -64,6 +64,7 @@ describe('Powerbox', () => {
     describe('class', () => {
         it('should properly order default commands and categories', async () => {
             const editable = document.createElement('div');
+            editable.classList.add('odoo-editor-editable');
             document.body.append(editable);
             const powerbox = new Powerbox({
                 categories: [
@@ -97,6 +98,7 @@ describe('Powerbox', () => {
         });
         it('should navigate through commands with arrow keys', async () => {
             const editable = document.createElement('div');
+            editable.classList.add('odoo-editor-editable');
             document.body.append(editable);
             const powerbox = new Powerbox({
                 categories: [],
@@ -122,6 +124,7 @@ describe('Powerbox', () => {
         });
         it('should execute command on press Enter', async () => {
             const editable = document.createElement('div');
+            editable.classList.add('odoo-editor-editable');
             document.body.append(editable);
             const powerbox = new Powerbox({
                 categories: [],
@@ -144,6 +147,7 @@ describe('Powerbox', () => {
         });
         it('should filter commands with `commandFilters`', async () => {
             const editable = document.createElement('div');
+            editable.classList.add('odoo-editor-editable');
             document.body.append(editable);
             const powerbox = new Powerbox({
                 categories: [],
@@ -169,6 +173,7 @@ describe('Powerbox', () => {
         });
         it('should filter commands with `isDisabled`', async () => {
             const editable = document.createElement('div');
+            editable.classList.add('odoo-editor-editable');
             document.body.append(editable);
             let disableCommands = false;
             const powerbox = new Powerbox({
@@ -198,6 +203,7 @@ describe('Powerbox', () => {
         });
         it('should filter commands with filter text', async () => {
             const editable = document.createElement('div');
+            editable.classList.add('odoo-editor-editable');
             document.body.append(editable);
             editable.append(document.createTextNode('original text'));
             setSelection(editable.firstChild, 13);
@@ -236,6 +242,7 @@ describe('Powerbox', () => {
         });
         it('should close the Powerbox on remove last filter text with Backspace', async () => {
             const editable = document.createElement('div');
+            editable.classList.add('odoo-editor-editable');
             document.body.append(editable);
             editable.append(document.createTextNode('1'));
             setSelection(editable.firstChild, 13);
@@ -277,6 +284,7 @@ describe('Powerbox', () => {
         });
         it('should close the Powerbox on press Escape', async () => {
             const editable = document.createElement('div');
+            editable.classList.add('odoo-editor-editable');
             document.body.append(editable);
             const powerbox = new Powerbox({
                 categories: [],
diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/utils.test.js b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/utils.test.js
index 6e22d6d2d74..0f2f53d384f 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/utils.test.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/utils.test.js
@@ -55,6 +55,7 @@ const cleanTestHtml = () => {
 const insertTestHtml = innerHtml => {
     cleanTestHtml();
     const container = document.createElement('DIV');
+    container.classList.add('odoo-editor-editable');
     container.setAttribute('contenteditable', true);
     container.innerHTML = innerHtml;
     document.body.appendChild(container);