I need to develop JS currency converter script that I could run in dev tools console.

I'm using exchangeratesapi.io Free API account to get currency rates. Free account doesn't allow SSL connection, so I'm using http instead of https. The problem is that I'm getting

Mixed Content: The page at 'https://example.com' was loaded over HTTPS, but requested an insecure resource 'http://api.exchangeratesapi.io/v1/latest?access_key=API_KEY&base=EUR&symbols=USD'. This request has been blocked; the content must be served over HTTPS. error, when I try to run fetch() in dev tools console.

When I trying to use same endpoint in Postman, I'm getting correct results. How can I bypass Mixed Content error?