Http proxy for fetch (#4676)

* Add HTTP Proxy Support to `fetch` Polyfill

Use `global-agent` to support HTTP_PROXY, HTTPS_PROXY, and NO_PROXY
environment variables.

* Add Changeset For HTTP Proxy Support in `fetch`

1 files changed, 7 insertions, 0 deletions

diff --git a/packages/webapi/src/lib/fetch.ts b/packages/webapi/src/lib/fetch.ts
index b099e44af..9c1f7c446 100644
--- a/packages/webapi/src/lib/fetch.ts
+++ b/packages/webapi/src/lib/fetch.ts
@@ -2,6 +2,13 @@ import type { RequestInit } from 'node-fetch'
 import { default as nodeFetch, Headers, Request, Response } from 'node-fetch'
 import Stream from 'node:stream'
 import * as _ from './utils'
+import {
+	bootstrap as bootstrapGlobalAgent
+} from 'global-agent';
+
+bootstrapGlobalAgent({
+	environmentVariableNamespace: '',
+});
 
 export { Headers, Request, Response }