correct webpath when webui_dir is not work_dir

modules/paths.py

 import os
 import sys
-from modules.paths_internal import models_path, script_path, data_path, extensions_dir, extensions_builtin_dir  # noqa: F401
+from modules.paths_internal import models_path, script_path, data_path, extensions_dir, extensions_builtin_dir, cwd  # noqa: F401
 
 import modules.safe  # noqa: F401
 

modules/paths_internal.py

@@ -8,6 +8,7 @@ import shlex
 commandline_args = os.environ.get('COMMANDLINE_ARGS', "")
 sys.argv += shlex.split(commandline_args)
 
+cwd = os.getcwd()
 modules_path = os.path.dirname(os.path.realpath(__file__))
 script_path = os.path.dirname(modules_path)
 

modules/ui_gradio_extensions.py

@@ -2,12 +2,12 @@ import os
 import gradio as gr
 
 from modules import localization, shared, scripts
-from modules.paths import script_path, data_path
+from modules.paths import script_path, data_path, cwd
 
 
 def webpath(fn):
-    if fn.startswith(script_path):
-        web_path = os.path.relpath(fn, script_path).replace('\\', '/')
+    if fn.startswith(cwd):
+        web_path = os.path.relpath(fn, cwd)
     else:
         web_path = os.path.abspath(fn)