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createImageFromTextureSource throws on wasm with transferred ownership #183166
Description
Steps to reproduce
- create project with code sample below and add
webto pubspec:web: ^1.1.1 - run with
flutter run -d chrome --wasm
Expected results
Decode with and without ownership transfer
Actual results
error: Bad state: DataCloneError: Failed to execute 'postMessage' on 'Worker': Value at index 0 does not have a transferable type.Had to switch to master to get details, stable just showed JavaScriptError
Code sample
Code sample
import 'dart:js_interop';
import 'dart:ui_web';
import 'package:flutter/widgets.dart';
import 'package:web/web.dart';
Future<void> main() async {
runApp(const SizedBox.expand());
final element = HTMLImageElement()
..crossOrigin = 'anonymous'
..src = 'https://picsum.photos/200/300';
await element.decode().toDart;
final image = await createImageFromTextureSource(
element,
height: element.height,
transferOwnership: true, // TODO throws on wasm
width: element.width,
);
print('${image.width}x${image.height}');
}Screenshots or Video
Logs
No response
Flutter Doctor output
Doctor output
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel master, 3.42.0-1.0.pre-361, on Microsoft Windows [Version 10.0.26200.7840], locale en-US)
[√] Windows Version (Windows 11 or higher, 25H2, 2009)
[√] Android toolchain - develop for Android devices (Android SDK version 36.0.0)
[√] Chrome - develop for the web
[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.13.6)
[√] Connected device (3 available)
[√] Network resources
• No issues found!
Activity
mbcorona commentedon Mar 5, 2026
Thanks for reporting @curt-weber .
I was able to reproduce the DataCloneError on both master and stable channels when running on Chrome with the --wasm flag.
Routing to team-web to evaluate the transferOwnership behavior with HTMLImageElement in WASM.
fix(web): fix crash in Skwasm when transferring non-transferable text…
fix(web): fix crash in Skwasm when transferring non-transferable text…
github-actions commentedon Apr 1, 2026
This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of
flutter doctor -vand a minimal reproduction of the issue.fix(web): fix crash in Skwasm when transferring non-transferable text…
fix(web): fix crash in Skwasm when transferring non-transferable text…