remove attachShadow from isBrowserSupported

AdguardTeam · Jan 13, 2023 · 283d0be · 283d0be
1 parent 6ee9c62
commit 283d0be
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/src/helpers/check-compatibility.js b/src/helpers/check-compatibility.js
@@ -14,8 +14,7 @@ export const isBrowserSupported = () => {
         && typeof Array.prototype.includes !== 'undefined'
         && typeof String.prototype.includes !== 'undefined'
         && typeof String.prototype.startsWith !== 'undefined'
-        && typeof String.prototype.endsWith !== 'undefined'
-        && typeof Element.prototype.attachShadow !== 'undefined';
+        && typeof String.prototype.endsWith !== 'undefined';
 };
 
 /**

diff --git a/src/scriptlets/remove-in-shadow-dom.js b/src/scriptlets/remove-in-shadow-dom.js
@@ -36,6 +36,12 @@ import {
  * ```
  */
 export function removeInShadowDom(source, selector, baseSelector) {
+    // do nothing if browser does not support ShadowRoot
+    // https://developer.mozilla.org/en-US/docs/Web/API/ShadowRoot
+    if (!Element.prototype.attachShadow) {
+        return;
+    }
+
     const removeElement = (targetElement) => {
         targetElement.remove();
     };