From 2c412a3c47ee851ff64592c2b25aabcb9d170db1 Mon Sep 17 00:00:00 2001
From: Ulion <ulion2002@gmail.com>
Date: Wed, 6 Dec 2023 10:23:18 +0800
Subject: [PATCH] Fix assign to readonly.

---
 src/polyfill/audioworklet_polyfill.ts | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/polyfill/audioworklet_polyfill.ts b/src/polyfill/audioworklet_polyfill.ts
index e7efece..06761ba 100644
--- a/src/polyfill/audioworklet_polyfill.ts
+++ b/src/polyfill/audioworklet_polyfill.ts
@@ -21,17 +21,19 @@ if (typeof window !== "undefined") {
 
   if (typeof AudioWorkletNode !== 'function' || !('audioWorklet' in AudioContext.prototype)) {
     if (AudioContext) {
-      // @ts-ignore
-      AudioContext.prototype.audioWorklet = {
-        // eslint-disable-next-line
-        addModule: async function (moduleURL: string | URL, options?: WorkletOptions): Promise<void> {
-          return;
-        },
-      };
+      if (!('audioWorklet' in AudioContext.prototype)) {
+        // @ts-ignore
+        AudioContext.prototype.audioWorklet = {
+          // eslint-disable-next-line
+          addModule: async function (moduleURL: string | URL, options?: WorkletOptions): Promise<void> {
+            return;
+          },
+        };
+      }
 
       // @ts-ignore
       // eslint-disable-next-line no-native-reassign
-      window.AudioWorkletNode = function (context: AudioContext, processorName: string, options: any): ScriptProcessorNode {
+      window.AudioWorkletNode = window.AudioWorkletNode || function (context: AudioContext, processorName: string, options: any): ScriptProcessorNode {
         const {numberOfChannels = 1, frameLength = 512} = options && options.processorOptions;
         const scriptProcessor: ScriptProcessorNode & ProcessorPolyfill = context.createScriptProcessor(frameLength, numberOfChannels, numberOfChannels);