带cookie的POST请求

Question

我尝试发送带有效负载的帖子请求以自动化条目。网址为：https://gleam.io/wOAtd/air-jordan-iii-free-throw-line。

#
payload = {
    email and address
}
headers = {
    "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36"
}
r1 = requests.get(
    'https://gleam.io/wOAtd/air-jordan-iii-free-throw-line'
)
print("r1", r1.status_code)
r2 = requests.post(
    'https://gleam.io/set-contestant',
    data = payload, cookies = r1.cookies,
    headers = headers)
print("r2", r2.status_code)

我从r1获得200，但从r2获得500。我还该怎么办？如果您提供答案，请说明您在网络中寻找的内容＆＃34;。