From 9afce3b423406aae0cd2841bb39071c90196c792 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Velad=20Galv=C3=A1n?= <ladvan91@hotmail.com>
Date: Tue, 15 Nov 2022 17:47:30 +0100
Subject: [PATCH] fix: Fix usage of WebCrypto in old browsers (#4711)

---
 lib/hls/hls_parser.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/hls/hls_parser.js b/lib/hls/hls_parser.js
index 93696f906c..57ad53bf82 100644
--- a/lib/hls/hls_parser.js
+++ b/lib/hls/hls_parser.js
@@ -2156,8 +2156,11 @@ shaka.hls.HlsParser = class {
             shaka.util.Error.Code.HLS_AES_128_INVALID_KEY_LENGTH);
       }
 
+      const algorithm = {
+        name: 'AES-CBC',
+      };
       keyInfo.cryptoKey = await window.crypto.subtle.importKey(
-          'raw', keyResponse.data, 'AES-CBC', true, ['decrypt']);
+          'raw', keyResponse.data, algorithm, true, ['decrypt']);
       keyInfo.fetchKey = undefined; // No longer needed.
     };