From da25701dcaf3560178b748e46d31184a472671c0 Mon Sep 17 00:00:00 2001
From: Bram Kragten <mail@bramkragten.nl>
Date: Wed, 15 Jan 2020 09:25:17 +0100
Subject: [PATCH] Disable adoptedStyleSheets in dev (#4474)

---
 src/entrypoints/core.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/entrypoints/core.ts b/src/entrypoints/core.ts
index 6dc9d9ad43..c44f03d892 100644
--- a/src/entrypoints/core.ts
+++ b/src/entrypoints/core.ts
@@ -70,6 +70,9 @@ const connProm = async (auth) => {
 };
 
 if (__DEV__) {
+  // Remove adoptedStyleSheets so style inspector works on shadow DOM.
+  // @ts-ignore
+  delete Document.prototype.adoptedStyleSheets;
   performance.mark("hass-start");
 }
 window.hassConnection = authProm().then(connProm);