How to set proxy for some fetch request not all

[XGHeaven]

I want to set proxy for some fetch request and others not. How to do that.

I know set http_proxy/https_proxy env which only proxy all fetch request.

[jacobgc]

As far as I'm aware, the fetch api doesn't support setting a proxy on an individual request basis.

[bartlomieju]

@jacobgc is correct. Please describe your use case and continue in #3444.

[chibat]

I tried creating the following.
https://github.com/chibat/rest_client_with_proxy

but we will be happy if it is implemented in runtime api.