System proxy appears not apply for terminal and chorme

I'm getting start with mitmproxy and I'm having some issues setting a system proxy. 1. I start mitmproxy in a terminal 2. I can curl --proxy http://localhost:8080 https://example.com and see the request appear 3. I set the http and https proxy in the system proxies settings: 4. I've used Firefox retrieve the root CA certificate and have trusted it, and I can requests made by Firefox appearing in the mitmproxy log. 5. Requests made in chrome do not appear 6. Curl requests made without the --proxy option do not appear 7. In terminal, if I first run

export http_proxy="http:/127.0.0.1:8080"
export https_proxy="http:/127.0.0.1:8080"

Then the curl requests will appear. Does the system proxy simply not apply to terminal and chrome?