From 3807294333300db5e13255831ec265594bf41466 Mon Sep 17 00:00:00 2001
From: Bendik Aagaard Lynghaug <bendik.lynghaug@gmail.com>
Date: Thu, 30 Jul 2026 15:06:14 +0200
Subject: [PATCH] Fix mic feedback in solo calls: force .muted on the local
 preview tile

Every video tile is built client-side via document.createElement, never
parsed from HTML - browsers only seed the live .muted property from the
muted attribute for parser-inserted elements, so the attribute alone
never actually silenced the local preview. Result: your own mic played
back through your own speakers even with no other peers in the call.
Now sets el.set_muted(true) directly whenever the preview's srcObject
is (re)assigned.
---
 src/app.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/app.rs b/src/app.rs
index a517be8..23783e4 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -450,9 +450,19 @@ fn CallPanel(room: Memo<String>, me: String) -> impl IntoView {
 
         // Mirror the local MediaStream into the preview <video> element -
         // `srcObject` has no HTML attribute form, has to be set via JS.
+        //
+        // Also force `.muted` via the JS property here, not just the
+        // `muted` attribute on the element below: every video tile in this
+        // app is built client-side via `document.createElement` (never
+        // parsed from HTML), and browsers only seed the live `.muted`
+        // property from the `muted` *attribute* for parser-inserted
+        // elements. Without this, the local preview plays back the user's
+        // own mic through their speakers - audible as feedback in a
+        // solo call.
         Effect::new(move |_| {
             let stream = call_state.get_value().local_stream().get();
             if let Some(el) = local_video_ref.get() {
+                el.set_muted(true);
                 el.set_src_object(stream.as_ref());
             }
         });