diff --git a/server.py b/server.py
index 33f71f4..d2f3c26 100644
--- a/server.py
+++ b/server.py
@@ -217,13 +217,15 @@ class VaultHandler(BaseHTTPRequestHandler):
             params = urllib.parse.parse_qs(query_string)
             q = params.get("q", [""])[0]
             self._json({"results": _search(VAULT_DIR, q) if q else []})
-        elif path.startswith("/api/vault/file/"):
-            rel = unquote(path[len("/api/vault/file/"):])
+        elif path == "/api/vault/file" or path.startswith("/api/vault/file/"):
+            if path == "/api/vault/file":
+                rel = ""
+            else:
+                rel = unquote(path[len("/api/vault/file/"):])
             # Lukas-add: also support ?file=<path> query for clean URL navigation
-            if "?" in rel:
-                rel, _, query = rel.partition("?")
+            if not rel and query_string:
                 from urllib.parse import parse_qs
-                file_param = parse_qs(query).get("file", [None])[0]
+                file_param = parse_qs(query_string).get("file", [None])[0]
                 if file_param:
                     rel = file_param
             file_path = VAULT_DIR / rel