do it normally

app.py

@@ -113,11 +113,14 @@ def update_inputs(task):
     elif task == "Render Formatted OCR":
         return [gr.update(visible=False)] * 3 + [gr.update(visible=True)]
     
+
 def ocr_demo(image, task, ocr_type, ocr_box, ocr_color):
-    res, html_content = process_image(image, task, ocr_type, ocr_box, ocr_color)
-    if html_content:
-        return res, html_content
-    return res, None
+    result = process_image(image, task, ocr_type, ocr_box, ocr_color)
+    if isinstance(result, tuple) and len(result) == 2:
+        res, html_content = result
+        if html_content:
+            return res, html_content
+    return result, None
 
 with gr.Blocks() as demo:
     gr.Markdown(title)