From e2f6c6f837d31afe8e69436201e3784787b79ecc Mon Sep 17 00:00:00 2001
From: Renee Mundie <reneemundie@PEO-M3P-RM.local>
Date: Tue, 6 May 2025 15:19:37 +1000
Subject: [PATCH] Fix unsafe enumeration in HttpRequestHeadersExtensions.Fill
 to prevent InvalidOperationException

---
 algoliasearch/Http/HttpRequestHeadersExtensions.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/algoliasearch/Http/HttpRequestHeadersExtensions.cs b/algoliasearch/Http/HttpRequestHeadersExtensions.cs
index 7b56a5ead..b37c772ce 100644
--- a/algoliasearch/Http/HttpRequestHeadersExtensions.cs
+++ b/algoliasearch/Http/HttpRequestHeadersExtensions.cs
@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Linq;
 using System.Net.Http.Headers;
 using Algolia.Search.Utils;
 
@@ -14,7 +15,7 @@ internal static class HttpRequestHeadersExtensions
   /// <returns></returns>
   internal static void Fill(this HttpRequestHeaders headers, IDictionary<string, string> dictionary)
   {
-    foreach (var header in dictionary)
+    foreach (var header in dictionary.ToList())
     {
       headers.TryAddWithoutValidation(header.Key, header.Value);
     }