: This is used for Signed HTTP Exchanges (SXG), which allows a browser to verify the authenticity of a page even if it was served from a cache or CDN.
In Python Requests, you can define the headers in a dictionary: : This is used for Signed HTTP Exchanges
import requests url = "https://example.com" headers = { "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7" } data = {"key": "value"} response = requests.post(url, headers=headers, data=data) print(response.status_code) Use code with caution. Copied to clipboard Breakdown of the Header Values: : This is used for Signed HTTP Exchanges