From e3375ebee224009fe203d2ec5c1d2a8f8c85bf7e Mon Sep 17 00:00:00 2001
From: Jake Champion <jchampion@fastly.com>
Date: Tue, 18 Jul 2023 01:37:38 +0100
Subject: [PATCH] respect charset within readBlobAsText fixes
 https://github.com/JakeChampion/fetch/issues/1059

---
 fetch.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fetch.js b/fetch.js
index 9c198c37..c70622cf 100644
--- a/fetch.js
+++ b/fetch.js
@@ -193,7 +193,9 @@ function readBlobAsArrayBuffer(blob) {
 function readBlobAsText(blob) {
   var reader = new FileReader()
   var promise = fileReaderReady(reader)
-  reader.readAsText(blob)
+  var match = /charset=([A-Za-z0-9_-]+)/.exec(blob.type)
+  var encoding = match ? match[1] : 'utf-8'
+  reader.readAsText(blob, encoding)
   return promise
 }