From 5998fea53d5ea26358c2f10939dfdf0bc679936d Mon Sep 17 00:00:00 2001
From: Richard Moore <github@ricmoo.com>
Date: Tue, 15 Mar 2022 21:33:06 -0400
Subject: [PATCH] Fix issue with CCIP Read using wrong sender (#2478).

---
 packages/providers/src.ts/base-provider.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/providers/src.ts/base-provider.ts b/packages/providers/src.ts/base-provider.ts
index d357081db0..90de028643 100644
--- a/packages/providers/src.ts/base-provider.ts
+++ b/packages/providers/src.ts/base-provider.ts
@@ -845,7 +845,7 @@ export class BaseProvider extends Provider implements EnsProvider {
     async ccipReadFetch(tx: Transaction, calldata: string, urls: Array<string>): Promise<null | string> {
         if (this.disableCcipRead || urls.length === 0) { return null; }
 
-        const sender = (tx.from || "0x0000000000000000000000000000000000000000").toLowerCase();
+        const sender = tx.to.toLowerCase();
         const data = calldata.toLowerCase();
 
         const errorMessages: Array<string> = [ ];