From 7a362ab8438d390efa4c24e6a6d2999d35b3d463 Mon Sep 17 00:00:00 2001
From: James Woodall <jamesikanos@users.noreply.github.com>
Date: Thu, 22 Dec 2022 21:50:36 +0100
Subject: [PATCH] Fixed "Cypress stops after 3 tests in Storybook"

When running in Storybook, after 3 tests, Cypress will hang on "loading iframe.html".

By ensuring that the EventSource is closed `onbeforeunload`, this fixes the issue.
---
 gatsby.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gatsby.js b/gatsby.js
index ff65ec9..4bd2307 100644
--- a/gatsby.js
+++ b/gatsby.js
@@ -37,6 +37,12 @@ Cypress.on('window:load', (win) => {
         break;
     }
   });
+  
+  win.onbeforeunload = () => {
+    // Ensure that the source is closed if the window is unloaded
+    console.debug(LOG_TAG, `Close the HMR Connection`);
+    source.close();
+  }
 });
 
 function getUrl() {