only cache object_info for now

folder_paths.py

@@ -52,12 +52,16 @@ class CacheHelper:
     """
     def __init__(self):
         self.cache: dict[str, tuple[list[str], dict[str, float], float]] = {}
+        self.active = False
 
     def get(self, key: str, default=None) -> tuple[list[str], dict[str, float], float]:
+        if not self.active:
+            return default
         return self.cache.get(key, default)
     
     def set(self, key: str, value: tuple[list[str], dict[str, float], float]) -> None:
-        self.cache[key] = value
+        if self.active:
+            self.cache[key] = value
 
     def clear(self):
         self.cache.clear()

server.py

@@ -553,6 +553,7 @@ class PromptServer():
         @routes.get("/object_info")
         async def get_object_info(request):
             folder_paths.cache_helper.clear()
+            folder_paths.cache_helper.active = True
             out = {}
             for x in nodes.NODE_CLASS_MAPPINGS:
                 try:
@@ -560,6 +561,7 @@ class PromptServer():
                 except Exception as e:
                     logging.error(f"[ERROR] An error occurred while retrieving information for the '{x}' node.")
                     logging.error(traceback.format_exc())
+            folder_paths.cache_helper.active = False
             return web.json_response(out)
 
         @routes.get("/object_info/{node_class}")