From ecbed8b57410aec212216665a35554d5b858058d Mon Sep 17 00:00:00 2001
From: Rob <136381220+robertpakalns@users.noreply.github.com>
Date: Wed, 13 May 2026 03:44:43 +0300
Subject: [PATCH] fix: provide default display handle for web canvas surface
 targets (#9476)

---
 wgpu/src/api/instance.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/wgpu/src/api/instance.rs b/wgpu/src/api/instance.rs
index 673f017952..d192959e81 100644
--- a/wgpu/src/api/instance.rs
+++ b/wgpu/src/api/instance.rs
@@ -221,12 +221,13 @@ impl Instance {
                 let value: &wasm_bindgen::JsValue = &canvas;
                 let obj = core::ptr::NonNull::from(value).cast();
                 let raw_window_handle = raw_window_handle::WebCanvasWindowHandle::new(obj).into();
+                let raw_display_handle = raw_window_handle::WebDisplayHandle::new().into();
 
                 // Note that we need to call this while we still have `value` around.
                 // This is safe without storing canvas to `handle_origin` since the surface will create a copy internally.
                 unsafe {
                     self.create_surface_unsafe(SurfaceTargetUnsafe::RawHandle {
-                        raw_display_handle: None,
+                        raw_display_handle: Some(raw_display_handle),
                         raw_window_handle,
                     })
                 }?
@@ -239,12 +240,13 @@ impl Instance {
                 let obj = core::ptr::NonNull::from(value).cast();
                 let raw_window_handle =
                     raw_window_handle::WebOffscreenCanvasWindowHandle::new(obj).into();
+                let raw_display_handle = raw_window_handle::WebDisplayHandle::new().into();
 
                 // Note that we need to call this while we still have `value` around.
                 // This is safe without storing canvas to `handle_origin` since the surface will create a copy internally.
                 unsafe {
                     self.create_surface_unsafe(SurfaceTargetUnsafe::RawHandle {
-                        raw_display_handle: None,
+                        raw_display_handle: Some(raw_display_handle),
                         raw_window_handle,
                     })
                 }?