Add CONSENT cookie to Worker for YouTube bypass

- YouTube returns consent page without cookies
- Add CONSENT and SOCS cookies to skip consent screen
- Forward Accept-Language from original request

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

worker/index.js

@@ -18,12 +18,17 @@ export default {
     }
 
     try {
+      // Build headers: start with original request headers, override key ones
+      const headers = new Headers();
+      headers.set('User-Agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36');
+      headers.set('Accept-Language', request.headers.get('Accept-Language') || 'ko-KR,ko;q=0.9,en-US;q=0.8,en;q=0.7');
+      headers.set('Accept', 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8');
+      // CONSENT cookie bypasses YouTube's consent screen
+      headers.set('Cookie', 'CONSENT=PENDING+987; SOCS=CAISHAgCEhJnd3NfMjAyNDAxMDEtMF9SQzIaAmVuIAEaBgiA0JCuBg');
+
       const response = await fetch(targetUrl, {
-        headers: {
-          'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36',
-          'Accept-Language': 'ko-KR,ko;q=0.9,en-US;q=0.8,en;q=0.7',
-          'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
-        },
+        headers,
+        redirect: 'follow',
       });
 
       const body = await response.arrayBuffer();