From acc4cc9fc791b6102bfd4fac91ed3a08842b7740 Mon Sep 17 00:00:00 2001
From: Timo K <toger5@hotmail.de>
Date: Thu, 31 Aug 2023 12:46:00 +0200
Subject: [PATCH] make wildcard (*) a possible parentUrl

Signed-off-by: Timo K <toger5@hotmail.de>
---
 src/widget.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/widget.ts b/src/widget.ts
index de03d78e..16f30624 100644
--- a/src/widget.ts
+++ b/src/widget.ts
@@ -75,7 +75,9 @@ export const widget: WidgetHelpers | null = (() => {
     const parentUrl = query.get("parentUrl");
 
     if (widgetId && parentUrl) {
-      const parentOrigin = new URL(parentUrl).origin;
+      // Allow * (wildcard) as the parentOrigin. This is needed if the widget does
+      // not run in an IFrame and instead needs to send the messages to the webview itself.
+      const parentOrigin = parentUrl === "*" ? "*" : new URL(parentUrl).origin;
       logger.info("Widget API is available");
       const api = new WidgetApi(widgetId, parentOrigin);
       api.requestCapability(MatrixCapabilities.AlwaysOnScreen);