From ddbd110cc72805b424655a47e3088877819af7f6 Mon Sep 17 00:00:00 2001
From: Ganesh Patil <7030871503ganeshpatil@gmail.com>
Date: Thu, 26 Feb 2026 20:48:07 +0530
Subject: [PATCH] fix: replace deprecated substr() with substring() in
 url-options-manager\n\nReplace window.location.href.substr() with substring()
 and add a guard\nfor missing query string to prevent incorrect behavior when
 the URL\nhas no '?' character."

---
 .../phoenix-event-display/src/managers/url-options-manager.ts  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/phoenix-event-display/src/managers/url-options-manager.ts b/packages/phoenix-event-display/src/managers/url-options-manager.ts
index 74cb7e472..1a7d4fe74 100644
--- a/packages/phoenix-event-display/src/managers/url-options-manager.ts
+++ b/packages/phoenix-event-display/src/managers/url-options-manager.ts
@@ -32,8 +32,9 @@ export class URLOptionsManager {
     private eventDisplay: EventDisplay,
     private configuration: Configuration,
   ) {
+    const queryIndex = window.location.href.indexOf('?');
     this.urlOptions = new URLSearchParams(
-      window.location.href.substr(window.location.href.lastIndexOf('?')),
+      queryIndex !== -1 ? window.location.href.substring(queryIndex) : '',
     );
   }