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app.py

@@ -48,6 +48,18 @@ def _patch_template_response_compat():
     original_template_response = gradio_routes.templates.TemplateResponse
 
     def safe_template_response(*args, **kwargs):
+        # Old-style positional call: TemplateResponse(name_str, context_dict)
+        # New Starlette interprets this as (request=name_str, name=context_dict),
+        # causing "unhashable type: 'dict'" when Jinja2 tries to cache on `name`.
+        if args and isinstance(args[0], str) and len(args) >= 2 and isinstance(args[1], dict):
+            name = args[0]
+            context = dict(args[1])
+            request = context.get("request")
+            try:
+                return original_template_response(request=request, name=name, context=context)
+            except Exception:
+                return original_template_response(name, context, *args[2:], **kwargs)
+
         if not args and {"request", "name", "context"} <= set(kwargs):
             request = kwargs["request"]
             name = kwargs["name"]