From adc68583cc3fe4cb4ed0a1f77fc1a446c8af201e Mon Sep 17 00:00:00 2001
From: Alex Osborne <aosborne@nla.gov.au>
Date: Tue, 5 Apr 2022 22:46:47 +0900
Subject: [PATCH] ChromeWindow: Ignore events once we've requested the window
 be closed

---
 contrib/src/main/java/org/archive/net/chrome/ChromeWindow.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contrib/src/main/java/org/archive/net/chrome/ChromeWindow.java b/contrib/src/main/java/org/archive/net/chrome/ChromeWindow.java
index 13a35b1a..8fca60db 100644
--- a/contrib/src/main/java/org/archive/net/chrome/ChromeWindow.java
+++ b/contrib/src/main/java/org/archive/net/chrome/ChromeWindow.java
@@ -86,6 +86,7 @@ public class ChromeWindow implements Closeable {
     }
 
     private void handleEvent(JSONObject message) {
+        if (closed) return;
         // Run event handlers on a different thread so we don't block the websocket receiving thread.
         // That would cause a deadlock if an event handler itself made an RPC call as the response could
         // never be processed.