From 6d25577fb4d756387b1a2def85b9073ba0bddf22 Mon Sep 17 00:00:00 2001
From: Jake <jake.kennedy@guardian.co.uk>
Date: Wed, 19 Feb 2025 17:07:49 +0000
Subject: [PATCH] Hide the third party cookie detection iframe (#1808)

---
 .changeset/moody-kangaroos-kick.md | 5 +++++
 src/lib/third-party-cookies.ts     | 2 ++
 2 files changed, 7 insertions(+)
 create mode 100644 .changeset/moody-kangaroos-kick.md

diff --git a/.changeset/moody-kangaroos-kick.md b/.changeset/moody-kangaroos-kick.md
new file mode 100644
index 000000000..8df03e446
--- /dev/null
+++ b/.changeset/moody-kangaroos-kick.md
@@ -0,0 +1,5 @@
+---
+'@guardian/commercial': patch
+---
+
+Hide the third party cookie iframe
diff --git a/src/lib/third-party-cookies.ts b/src/lib/third-party-cookies.ts
index 79aa4aba0..56a10f435 100644
--- a/src/lib/third-party-cookies.ts
+++ b/src/lib/third-party-cookies.ts
@@ -15,6 +15,8 @@ const isTPCTestPayload = (payload: unknown): payload is TPCTestPayload =>
  **/
 const checkThirdPartyCookiesEnabled = (): void => {
 	const crossSiteIrame = document.createElement('iframe');
+
+	crossSiteIrame.style.display = 'none';
 	crossSiteIrame.src = `${window.guardian.config.frontendAssetsFullURL}commercial/tpc-test/v1/index.html`;
 
 	window.addEventListener('message', ({ data }) => {