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Linux: huddles fail with NotAllowedError — WebKitGTK user-media permission request appears unhandled #3495
Description
With the WebRTC GStreamer plugins loading correctly (see #3494)
and a working audio input device present, starting a huddle on Linux fails with:
The request is not allowed by the user agent or the platform in the current
context, possibly because the user denied permission.
No permission prompt is ever shown.
On macOS/Windows the OS provides the mic-permission UI, but on Linux WebKitGTK the
embedding application must answer WebKitUserMediaPermissionRequest (via the
permission-request signal / wry's permission hook) — an unanswered request is a
denial. I can't find a handler for this in the desktop shell, which would make
getUserMedia structurally un-grantable on Linux regardless of hardware.
Diagnostic ladder ruled out (Arch, native 0.5.0):
- GStreamer webrtc/nice plugins load (after the bundled-lib workaround above);
- an audio source is present and enumerable (verified with a PipeWire source;
with no source present the error is a constraint error instead, as expected); - the failure is then NotAllowedError with no prompt → permission layer.
Suggested fix: handle WebKitUserMediaPermissionRequest in the Linux WebView
(allow for the app's own origin, or surface an in-app prompt), and ideally also
webkit_settings_set_enable_media_stream(TRUE) if not already set.
Happy to test a build — this is the last blocker for voice on native Linux as far
as I can tell.
Environment: as #3494.
Activity
dekanbro commentedon Jul 29, 2026
Confirmed on a second Linux distribution with the same failure.
Environment:
Behavior:
Local diagnostics:
pulsesrc,pipewiresrc, andautoaudiosrcplugins are available.This matches the unhandled WebKitGTK user-media permission-request diagnosis and shows the problem is not Arch-specific.
wpfleger96 commentedon Jul 30, 2026
fixed in #3607
scottsanpedro commentedon Jul 31, 2026
Confirmed fixed by #3607 on 0.5.3 (Arch Linux, native extracted install) — huddles now open and work end-to-end, including voice conversation with an agent.
One note for anyone testing on non-Debian distros: #3494 (bundled libsoup-3.0/libnghttp2 shadowing system libs) still applies on 0.5.3 — without the rename workaround the system GStreamer WebRTC plugins don't load, so huddles fail for a different reason before this fix is even reachable.