From 5a62db7ccaea2723b12f2de95b2b5c7ffa97a23b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=81lvaro=20Velad=20Galv=C3=A1n?= <ladvan91@hotmail.com>
Date: Wed, 8 Jan 2025 13:58:42 +0100
Subject: [PATCH] chore(Demo): Fix "Custom DRM System" field when set to known
 drm system (#7843)

Related to https://github.com/shaka-project/shaka-player/issues/7546
---
 demo/custom.js | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/demo/custom.js b/demo/custom.js
index 09fc435f6d..315deaa82c 100644
--- a/demo/custom.js
+++ b/demo/custom.js
@@ -442,12 +442,9 @@ shakaDemo.Custom = class {
     // Make the drm system field.
     const drmSetup = (input, container) => {
       customDrmSystemInput = input;
-      const drmSystems = assetInProgress.licenseServers.keys();
-      for (const drmSystem of drmSystems) {
-        if (!shakaDemo.Main.commonDrmSystems.includes(drmSystem)) {
-          input.value = drmSystem;
-          break;
-        }
+      if (assetInProgress.licenseServers.size == 1) {
+        const drmSystems = assetInProgress.licenseServers.keys();
+        input.value = Array.from(drmSystems)[0];
       }
     };
     const drmOnChange = (input) => {