@3HKowalski The reason for a 400 response is typically due to ๐บ๐ฎ๐น๐ณ๐ผ๐ฟ๐บ๐ฒ๐ฑ ๐ฟ๐ฒ๐พ๐๐ฒ๐๐ ๐๐๐ป๐๐ฎ๐ , ๐ถ๐ป๐๐ฎ๐น๐ถ๐ฑ ๐ฟ๐ฒ๐พ๐๐ฒ๐๐ ๐บ๐ฒ๐๐๐ฎ๐ด๐ฒ ๐ณ๐ฟ๐ฎ๐บ๐ถ๐ป๐ด, ๐ผ๐ฟ ๐ฑ๐ฒ๐ฐ๐ฒ๐ฝ๐๐ถ๐๐ฒ ๐ฟ๐ฒ๐พ๐๐ฒ๐๐ ๐ฟ๐ผ๐๐๐ถ๐ป๐ด. (from MDN Web Docs)