fix: custom comfy-api-base works with subpath (Comfy-Org#8332)

Author: BennyKok

comfy_api_nodes/apis/client.py

@@ -327,7 +327,9 @@ def request(
             ApiServerError: If the API server is unreachable but internet is working
             Exception: For other request failures
         """
-        url = urljoin(self.base_url, path)
+        # Use urljoin but ensure path is relative to avoid absolute path behavior
+        relative_path = path.lstrip('/')
+        url = urljoin(self.base_url, relative_path)
         self.check_auth(self.auth_token, self.comfy_api_key)
         # Combine default headers with any provided headers
         request_headers = self.get_headers()