diff --git a/backend/services/proxy.py b/backend/services/proxy.py
index 336a71b..0874341 100644
--- a/backend/services/proxy.py
+++ b/backend/services/proxy.py
@@ -109,12 +109,9 @@ def playwright_proxy(cfg: dict, session_id: Optional[str] = None) -> Optional[di
         return None
     user, pwd = _build_auth(cfg, session_id)
     server = f"http://{cfg['host']}:{cfg['port']}"
-    if _provider(cfg) == 'iproyal':
-        return {'server': server, 'username': user, 'password': pwd}
-    from urllib.parse import quote
-    return {
-        'server': f"http://{quote(user, safe='')}:{quote(pwd, safe='')}@{cfg['host']}:{cfg['port']}",
-    }
+    # Both providers use separate fields — URL-embedded credentials stop being
+    # forwarded by Chromium when request interception (context.route) is active.
+    return {'server': server, 'username': user, 'password': pwd}
 
 
 def httpx_proxy(cfg: dict, session_id: Optional[str] = None):