From 0a3498d93a66b49911b073db123f9daf2867e969 Mon Sep 17 00:00:00 2001
From: Miguel Jimenez Esun <mjimenez@fb.com>
Date: Mon, 9 Apr 2018 19:37:00 -0700
Subject: [PATCH] Dispose document when tearing down JSDom environment

---
 packages/jest-environment-jsdom/src/index.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/jest-environment-jsdom/src/index.js b/packages/jest-environment-jsdom/src/index.js
index b6acdc4d4ab5..df345faabf4d 100644
--- a/packages/jest-environment-jsdom/src/index.js
+++ b/packages/jest-environment-jsdom/src/index.js
@@ -97,6 +97,8 @@ class JSDOMEnvironment {
       if (this.errorEventListener) {
         this.global.removeEventListener('error', this.errorEventListener);
       }
+      // Dispose "document" to prevent "load" event from triggering.
+      Object.defineProperty(this.global, 'document', {value: null});
       this.global.close();
     }
     this.errorEventListener = null;