fix(core): don't extend html elements (#4691)

* fix(core): dont extend html elements

Co-authored-by: Vladimir Kharlampidi <[email protected]>

Author: vltansky

src/utils/utils.js

@@ -95,9 +95,15 @@ function isObject(o) {
 function extend(...args) {
   const to = Object(args[0]);
   const noExtend = ['__proto__', 'constructor', 'prototype'];
+  // eslint-disable-next-line
+  const HTMLElement = typeof window !== 'undefined' ? window.HTMLElement : undefined;
   for (let i = 1; i < args.length; i += 1) {
     const nextSource = args[i];
-    if (nextSource !== undefined && nextSource !== null) {
+    if (
+      nextSource !== undefined &&
+      nextSource !== null &&
+      !(HTMLElement && nextSource instanceof HTMLElement)
+    ) {
       const keysArray = Object.keys(Object(nextSource)).filter((key) => noExtend.indexOf(key) < 0);
       for (let nextIndex = 0, len = keysArray.length; nextIndex < len; nextIndex += 1) {
         const nextKey = keysArray[nextIndex];