Error in loading JSON data -JSONDecodeError

I am trying to get json data in a container using following code:

import requestsimport pandas as pdimport jsonfrom bs4 import BeautifulSoupurl = 'https://www.nseindia.com/api/quote-derivative?symbol=NIFTY&identifier=FUTIDXNIFTY29-02-2024XX0.00'headers = {'accept':'*/*','accept-encoding':'gzip, deflate, br','user-agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36'         }session = requests.Session()data = session.get(url, headers = headers).json()

It throws me following error:

JSONDecodeError: Expecting value: line 1 column 1 (char 0)