From 53612dab90d08edc6ee3ba2856628c599a07fd83 Mon Sep 17 00:00:00 2001
From: Jay Oster <jay@kodewerx.org>
Date: Thu, 12 Dec 2024 15:38:24 -0800
Subject: [PATCH] Fix devtools timeout with Firefox 133 (#34602)

Signed-off-by: Jay Oster <jay@kodewerx.org>
---
 components/devtools/actors/root.rs | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/components/devtools/actors/root.rs b/components/devtools/actors/root.rs
index d6a4f2e4edd..a252255f52e 100644
--- a/components/devtools/actors/root.rs
+++ b/components/devtools/actors/root.rs
@@ -115,6 +115,13 @@ struct GetProcessResponse {
     process_descriptor: ProcessActorMsg,
 }
 
+#[derive(Serialize)]
+struct ErrorResponse {
+    from: String,
+    error: String,
+    message: String,
+}
+
 pub struct RootActor {
     pub tabs: Vec<String>,
     pub workers: Vec<String>,
@@ -249,7 +256,19 @@ impl Actor for RootActor {
                 ActorMessageStatus::Processed
             },
 
-            _ => ActorMessageStatus::Ignored,
+            _ => {
+                let reply = ErrorResponse {
+                    from: self.name(),
+                    error: "unrecognizedPacketType".to_owned(),
+                    message: format!(
+                        "Actor {} does not recognize the packet type '{}'",
+                        self.name(),
+                        msg_type,
+                    ),
+                };
+                let _ = stream.write_json_packet(&reply);
+                ActorMessageStatus::Ignored
+            },
         })
     }
 }