From 3047c3ab24442a718f3252a0220e7fc2d284247c Mon Sep 17 00:00:00 2001
From: Mark Stacey <markjstacey@gmail.com>
Date: Mon, 12 Sep 2022 17:05:41 -0400
Subject: [PATCH] Resolve inconsistency between browsers (#15800)

Resolve an inconsistency between Chrome and Firefox with how the
contentscript runs in an iframe.

This should have no user-facing impact, it's just meant as a safeguard
in case something unintentionally gets included in the contentscript.
---
 app/manifest/v2/chrome.json | 1 +
 app/manifest/v3/chrome.json | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/app/manifest/v2/chrome.json b/app/manifest/v2/chrome.json
index e4bb01cdd..9a2d91271 100644
--- a/app/manifest/v2/chrome.json
+++ b/app/manifest/v2/chrome.json
@@ -1,4 +1,5 @@
 {
+  "content_security_policy": "frame-ancestors 'none'",
   "externally_connectable": {
     "matches": ["https://metamask.io/*"],
     "ids": ["*"]
diff --git a/app/manifest/v3/chrome.json b/app/manifest/v3/chrome.json
index e4bb01cdd..9e21aa058 100644
--- a/app/manifest/v3/chrome.json
+++ b/app/manifest/v3/chrome.json
@@ -1,4 +1,7 @@
 {
+  "content_security_policy": {
+    "extension_pages": "default-src 'self'; frame-ancestors 'none'"
+  },
   "externally_connectable": {
     "matches": ["https://metamask.io/*"],
     "ids": ["*"]