From a74ce64539e29cfef96d03e87490c9454b61f3e1 Mon Sep 17 00:00:00 2001
From: Josh Matthews <josh@joshmatthews.net>
Date: Mon, 20 Jun 2016 13:23:48 -0400
Subject: [PATCH] Avoid an unnecessary panic when the script task deals with a
 GC after the layout thread is unreachable.

---
 components/script/dom/node.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/components/script/dom/node.rs b/components/script/dom/node.rs
index 53a3f355b9d..ec370dff293 100644
--- a/components/script/dom/node.rs
+++ b/components/script/dom/node.rs
@@ -192,7 +192,9 @@ impl Node {
         debug_assert!(thread_state::get().is_script());
         let win = window_from_node(self);
         self.style_and_layout_data.set(None);
-        win.layout_chan().send(Msg::ReapStyleAndLayoutData(data)).unwrap();
+        if win.layout_chan().send(Msg::ReapStyleAndLayoutData(data)).is_err() {
+            warn!("layout thread unreachable - leaking layout data");
+        }
     }
 
     /// Adds a new child to the end of this node's list of children.