From c7f52ba8f7907f75931997ad592f2188ab91da98 Mon Sep 17 00:00:00 2001
From: Gabriele Svelto <gsvelto@mozilla.com>
Date: Mon, 25 Sep 2023 12:54:09 +0000
Subject: [PATCH] Bug 1854386 - Suppress MIDI port creationg errors if the MIDI
 access promise is gone r=padenot

Differential Revision: https://phabricator.services.mozilla.com/D188831
---
 dom/midi/MIDIAccess.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dom/midi/MIDIAccess.cpp b/dom/midi/MIDIAccess.cpp
index 2ddb9b46940e..fa8ae514c29b 100644
--- a/dom/midi/MIDIAccess.cpp
+++ b/dom/midi/MIDIAccess.cpp
@@ -216,6 +216,8 @@ void MIDIAccess::Notify(const MIDIPortList& aEvent) {
     MaybeCreateMIDIPort(port, rv);
     if (rv.Failed()) {
       if (!mAccessPromise) {
+        // We can't reject the promise so let's suppress the error instead
+        rv.SuppressException();
         return;
       }
       mAccessPromise->MaybeReject(std::move(rv));