Error While getting authorization code from UPS Api

Question

We are utilizing the UPS Authorization (OAuth) endpoint to obtain the authorization code. We are using the following API endpoint:

https://wwwcie.ups.com/security/v1/oauth/authorize

Here are the query parameters we are using for this request:

client_id - xxxxxxxxxxxxxxxxxxxxxxxxxxxx
redirect_uri - https://example.io/
response_type - code

We have attempted the request both with and without two optional parameters. Here are the optional parameters:

state - ups
scope - shipping(We have also tried different scope like rating, tracking, ship, etc.)

But we are getting following error:

Could not get any response
Failed to fetch

Why this might have happened:
- CORS is misconfigured on the server
- The server could not send a response
- No internet access
- Documentation issue - contact API owner
- Misconfigured security definition

Here is the link to the developer document and sandbox account that we are utilizing for this request: https://developer.ups.com/api/reference?loc=en_US#operation/AuthorizeClient

We also attempted the provided Python code from their documentation, but it didn't generate any output.

import requests

url = "https://wwwcie.ups.com/security/v1/oauth/authorize"

query = {
  "client_id": "xxxxxxxxxxxxxxxxxxxxxxxxxxxx",
  "redirect_uri": "https://example.io/",
  "response_type": "code",
  "state": "string",
  "scope": "tracking"
}

response = requests.get(url, params=query)

data = response.json()
print(data)

Could anyone please let me know which settings we need to be adjusted to resolve this issue?