diff --git a/frontend/app/player/web/managers/DOM/StylesManager.ts b/frontend/app/player/web/managers/DOM/StylesManager.ts
index 92f51aed9..4ee22b3fd 100644
--- a/frontend/app/player/web/managers/DOM/StylesManager.ts
+++ b/frontend/app/player/web/managers/DOM/StylesManager.ts
@@ -1,16 +1,13 @@
 import type Screen from '../../Screen/Screen';
-import type { CssInsertRule, CssDeleteRule } from '../../messages';
 import { replaceCSSPseudoclasses } from '../../messages/rewriter/rewriteMessage'
 
-type CSSRuleMessage = CssInsertRule | CssDeleteRule;
-
 // Doesn't work with css files (hasOwnProperty returns false)
 // TODO: recheck and remove if true
 function rewriteNodeStyleSheet(doc: Document, node: HTMLLinkElement | HTMLStyleElement) {
   const ss = Object.values(doc.styleSheets).find(s => s.ownerNode === node);
   if (!ss || !ss.hasOwnProperty('rules')) { return; }
-  for(let i = 0; i < ss.rules.length; i++){
-    const r = ss.rules[i]
+  for(let i = 0; i < ss.cssRules.length; i++){
+    const r = ss.cssRules[i]
     if (r instanceof CSSStyleRule) {
       r.selectorText = replaceCSSPseudoclasses(r.selectorText)
     }
diff --git a/frontend/app/player/web/messages/rewriter/urlResolve.ts b/frontend/app/player/web/messages/rewriter/urlResolve.ts
index 6f76d6d15..47f74b36b 100644
--- a/frontend/app/player/web/messages/rewriter/urlResolve.ts
+++ b/frontend/app/player/web/messages/rewriter/urlResolve.ts
@@ -5,9 +5,10 @@ export function resolveURL(baseURL: string, relURL: string): string {
   return new URL(relURL, baseURL).toString();
 }
 
-
+// url("url") or url('url') or url(url)
 const re1 = /url\(("[^"]*"|'[^']*'|[^)]*)\)/g
-const re2 = /@import "(.*?)"/g
+// @import "url" or @import 'url'
+const re2 = /@import (["'])(.*?)\1/g
 function cssUrlsIndex(css: string): Array<[number, number]> {
   const idxs: Array<[number, number]> = [];
   const i1 = css.matchAll(re1);