From b285fa67e4d35098479bb9b640b7f6969f2fddf5 Mon Sep 17 00:00:00 2001
From: Fedir Zinchuk <getthesite@gmail.com>
Date: Thu, 30 Mar 2023 22:00:22 +0300
Subject: [PATCH] Fix validator compatibility break (#40230)

---
 .../media_source/system/js/fields/validate.es6.js | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/build/media_source/system/js/fields/validate.es6.js b/build/media_source/system/js/fields/validate.es6.js
index 2a98c1b76fa33..5412dc52bd15f 100644
--- a/build/media_source/system/js/fields/validate.es6.js
+++ b/build/media_source/system/js/fields/validate.es6.js
@@ -249,10 +249,15 @@ class JFormValidator {
     let valid = true;
     let message;
     let error;
+    let fields;
     const invalid = [];
 
     // Validate form fields
-    const fields = [].slice.call(form.elements);
+    if (form.nodeName === 'FORM') {
+      fields = [].slice.call(form.elements);
+    } else {
+      fields = [].slice.call(form.querySelectorAll('input, textarea, select, button, fieldset'));
+    }
     fields.forEach((field) => {
       if (this.validate(field) === false) {
         valid = false;
@@ -284,7 +289,13 @@ class JFormValidator {
 
   attachToForm(form) {
     const inputFields = [];
-    const elements = [].slice.call(form.elements);
+    let elements;
+
+    if (form.nodeName === 'FORM') {
+      elements = [].slice.call(form.elements);
+    } else {
+      elements = [].slice.call(form.querySelectorAll('input, textarea, select, button, fieldset'));
+    }
 
     // Iterate through the form object and attach the validate method to all input fields.
     elements.forEach((element) => {