From 192008bc724e8619163f71ecf1e3405b4d25b942 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Wojciech=20Tyczy=C5=84ski?= <tykus160@gmail.com>
Date: Wed, 20 Nov 2024 15:57:21 +0100
Subject: [PATCH] fix(PS5): Prevent uncaught promise rejections when requests
 are aborted (#7637)
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On PS5 we are seeing following uncaught exceptions when requests are
aborted:
```
[Error] Fetch is aborted – PromiseRejectionEvent {isTrusted: false, promise: Promise, reason: AbortError: Fetch is aborted, …}
PromiseRejectionEvent {isTrusted: false, promise: Promise, reason: AbortError: Fetch is aborted, type: "unhandledrejection", target: Window, …}PromiseRejectionEvent
	(anonymous function) (Anonymous Script 1 (line 429))
[Error] Unhandled Promise Rejection: AbortError: Fetch is aborted
	promiseEmptyOnRejected
	promiseReactionJob
```
---
 lib/util/abortable_operation.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/util/abortable_operation.js b/lib/util/abortable_operation.js
index 37fe63d0b0..4013d509f5 100644
--- a/lib/util/abortable_operation.js
+++ b/lib/util/abortable_operation.js
@@ -166,6 +166,9 @@ shaka.util.AbortableOperation = class {
    */
   chain(onSuccess, onError) {
     const newPromise = new shaka.util.PublicPromise();
+    // Silence uncaught rejection errors, which may otherwise occur any place
+    // we don't explicitly handle aborted operations.
+    newPromise.catch(() => {});
     const abortError = shaka.util.AbortableOperation.abortError();
 
     // If called before "this" completes, just abort "this".