I'm having an issue when trying to request user activities from the endpoint https://www.strava.com/api/v3/athlete/activities. I get a 403 (Bad Request) error, although the client secret string and user access token are fine. Here's roughly the HTML page I get in response:
403 ERROR Bad request. We can't connect to the server for this app or website at this time. There might be too much traffic or a configuration error. Try again later, or contact the app or website owner.
If you provide content to customers through CloudFront, you can find steps to troubleshoot and help prevent this error by reviewing the CloudFront documentation.
Generated by cloudfront (CloudFront)
I've already seen a couple of posts here with a similar error, but no useful answers. Maybe I am doing something wrong? I would be grateful if someone could point me out on my mistake.