Update app.py

app.py

@@ -294,10 +294,11 @@ def process_image(
             buffer = raw_output
             result['raw_output'] = buffer
             yield result
-        try:
-            json_match = re.search(r'```json
+        try:                                       
+            json_match = re.search(r'```json\s*([\s\S]+?)\s*```', buffer)
             json_str = json_match.group(1) if json_match else buffer
-            layout_data = json.loads(json_str)
+            layout_data = json.loads(json_str)                       
+                                   
             result['layout_result'] = layout_data
             try:
                 markdown_content = layoutjson2md(image, layout_data, text_key='text')