Getting HTTP 415 Errors – What’s the Best Way to Fix Unsupported Media Type Issues? or HTTP 415 Unsup

Wild guess: Are you sending a body with a GET request? Some servers freak out and throw http 415 even if the headers are right.

Also, try curl to test:

```
curl -X POST -H "Content-Type: application/json" -d '{"key":"value"}' your-api-url
```