diff --git a/copyparty/httpcli.py b/copyparty/httpcli.py
index 15c815da..1196f13e 100644
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
@@ -2532,6 +2532,9 @@ class HttpCli(object):
                 if thp:
                     return self.tx_file(thp)
 
+                if th_fmt == "p":
+                    raise Pebkac(404)
+
                 return self.tx_ico(rem)
 
         if not is_dir and (self.can_read or self.can_get):
diff --git a/copyparty/th_cli.py b/copyparty/th_cli.py
index 5496ad47..473d1855 100644
--- a/copyparty/th_cli.py
+++ b/copyparty/th_cli.py
@@ -30,6 +30,8 @@ class ThumbCli(object):
 
         try:
             c = hsrv.th_cfg
+            if not c:
+                raise Exception()
         except:
             c = {k: {} for k in ["thumbable", "pil", "vips", "ffi", "ffv", "ffa"]}