diff --git a/packages/bolt-connection/src/channel/browser/browser-channel.js b/packages/bolt-connection/src/channel/browser/browser-channel.js
index ff5d1144e..c22e7fbb8 100644
--- a/packages/bolt-connection/src/channel/browser/browser-channel.js
+++ b/packages/bolt-connection/src/channel/browser/browser-channel.js
@@ -166,10 +166,10 @@ export default class WebSocketChannel {
    */
   close () {
     return new Promise((resolve, reject) => {
+      this._clearConnectionTimeout()
       if (this._ws && this._ws.readyState !== WS_CLOSED) {
         this._open = false
         this.stopReceiveTimeout()
-        this._clearConnectionTimeout()
         this._ws.onclose = () => resolve()
         this._ws.close()
       } else {
diff --git a/packages/neo4j-driver-deno/lib/bolt-connection/channel/browser/browser-channel.js b/packages/neo4j-driver-deno/lib/bolt-connection/channel/browser/browser-channel.js
index 655461e61..c38443e46 100644
--- a/packages/neo4j-driver-deno/lib/bolt-connection/channel/browser/browser-channel.js
+++ b/packages/neo4j-driver-deno/lib/bolt-connection/channel/browser/browser-channel.js
@@ -166,10 +166,10 @@ export default class WebSocketChannel {
    */
   close () {
     return new Promise((resolve, reject) => {
+      this._clearConnectionTimeout()
       if (this._ws && this._ws.readyState !== WS_CLOSED) {
         this._open = false
         this.stopReceiveTimeout()
-        this._clearConnectionTimeout()
         this._ws.onclose = () => resolve()
         this._ws.close()
       } else {
diff --git a/packages/neo4j-driver-lite/test/integration/browser.environment.js b/packages/neo4j-driver-lite/test/integration/browser.environment.js
index ddea458c4..8612ba539 100644
--- a/packages/neo4j-driver-lite/test/integration/browser.environment.js
+++ b/packages/neo4j-driver-lite/test/integration/browser.environment.js
@@ -23,10 +23,9 @@ class BrowserEnvironment extends NodeEnvironment {
   async setup () {
     await super.setup()
     this.global.WebSocket = WebSocket
-    this.global.window = {
-      navigator: {
-        userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36'
-      }
+    this.global.window = globalThis
+    this.global.window.navigator = {
+      userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36'
     }
   }