From e1ce570214dca7403b7706c15db812f9ecd1af8a Mon Sep 17 00:00:00 2001
From: Dylan Fiedler <dtfiedler@users.noreply.github.com>
Date: Sun, 3 Nov 2024 19:37:09 -0600
Subject: [PATCH] fix(observe): set `Accept-Encoding` header when fetching arns
 data

Gateways may use CDNs to serve data. Those CDN's may return compressed data depending on their configuration. To avoid discrpencies, the observations should request the raw data  using the `Accept-Encoding: identity` header.

Related PR: https://github.com/ar-io/ar-io-observer/pull/53
---
 src/utils/index.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/utils/index.ts b/src/utils/index.ts
index 78c13b25..a755c969 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -104,6 +104,10 @@ export const fetchWithTimeout = async (resource:string, options?:RequestInit, ti
 
   const response = await fetch(resource, {
     ...options,
+    headers: {
+      ...options?.headers,
+      'Accept-Encoding': 'identity'
+    },
     signal: controller.signal  
   });
   clearTimeout(id);