feat: get client IP from Context object rather than the request header (#5473)

* feat: get client IP from Context object rather than header

* chore: add changeset entry for change

Author: ericapisani

Diff for: .changeset/yellow-laws-prove.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-netlify': minor
+---
+
+feat: get client IP from Context object rather than the request header

Diff for: packages/adapter-netlify/src/edge.js

@@ -19,7 +19,7 @@ export default function handler(request, context) {
 	return server.respond(request, {
 		platform: { context },
 		getClientAddress() {
-			return request.headers.get('x-nf-client-connection-ip');
+			return context.ip;
 		}
 	});
 }