[Web] The image is rendered incorrectly when a size is set in main channel

### Steps to reproduce

1. Switch to main channel
2. Build web app

### Expected results

Image show properly

### Actual results

Resize images show like low-resolution

### Code sample

<details open><summary>Code sample</summary>

```dart
import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: .fromSeed(seedColor: Colors.deepPurple),
      ),
      home: const MyHomePage(),
    );
  }
}

class MyHomePage extends StatelessWidget {
  const MyHomePage({super.key});


  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Column(
        mainAxisAlignment: .center,
        children: [
          //just https://flutter.dev/assets/lockup_flutter_horizontal.d0515092173211776ceed19b39c2a041.png in project
          Image.asset("assets/icon_flutter.png"),
          Image.asset("assets/icon_flutter.png",height: 150,width: 150),
          Image.network("https://flutter.dev/assets/lockup_flutter_horizontal.d0515092173211776ceed19b39c2a041.png"),
          Image.network("https://flutter.dev/assets/lockup_flutter_horizontal.d0515092173211776ceed19b39c2a041.png",height: 150,width: 150,)
        ],
      ),
    );
  }
}
```

</details>


### Screenshots or Video

<details open>
<summary>Screenshots / Video demonstration</summary>

<img width="615" height="638" alt="Image" src="https://github.com/user-attachments/assets/10cdca66-930c-4241-9cd6-8d7e6ef50aae" />

</details>


### Logs

<details open><summary>Logs</summary>

```console
```

</details>


### Flutter Doctor output

<details open><summary>Doctor output</summary>

```console
[✓] Flutter (Channel main, 3.44.0-1.0.pre-558, on macOS 26.5 25F71 darwin-arm64,
    locale it-IT) [898ms]
    • Flutter version 3.44.0-1.0.pre-558 on channel main at
      /Users/vincenzo/flutter/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 987d8c5977 (15 hours ago), 2026-05-14 20:07:29 +0200
    • Engine revision 3e4e8b379e
    • Dart version 3.13.0 (build 3.13.0-104.0.dev)
    • DevTools version 2.58.0
    • Feature flags: enable-web, enable-linux-desktop, enable-macos-desktop,
      enable-windows-desktop, enable-android, enable-ios, cli-animations,
      enable-native-assets, enable-swift-package-manager,
      omit-legacy-version-file, enable-lldb-debugging, enable-uiscene-migration,
      enable-riscv64

[✓] Android toolchain - develop for Android devices (Android SDK version 36.1.0)
    [873ms]
    • Android SDK at /Users/vincenzo/Library/Android/sdk
    • Emulator version 36.5.11.0 (build_id 15261927) (CL:N/A)
    • Platform android-36.1, build-tools 36.1.0
    • ANDROID_HOME = /Users/vincenzo/Library/Android/sdk
    • Java binary at: /Users/vincenzo/Applications/Android
      Studio.app/Contents/jbr/Contents/Home/bin/java
      This is the JDK bundled with the latest Android Studio installation on
      this machine.
      To manually set the JDK path, use: `flutter config
      --jdk-dir="path/to/jdk"`.
    • Java version OpenJDK Runtime Environment (build
      21.0.10+-117844308-b1163.108)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 26.5) [478ms]
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 17F42
    • CocoaPods version 1.16.2

[✓] Chrome - develop for the web [4ms]
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Connected device (4 available) [5,8s]
    • macOS (desktop)                          • macos                     •
      darwin-arm64   • macOS 26.5 25F71 darwin-arm64
    • Chrome (web)                             • chrome                    •
      web-javascript • Google Chrome 148.0.7778.168

[✓] Network resources [253ms]
    • All expected network resources are available.

• No issues found!
```

</details>


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Uh oh!

[Web] The image is rendered incorrectly when a size is set in main channel #186569

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Uh oh!

[Web] The image is rendered incorrectly when a size is set in main channel #186569

Description

Steps to reproduce

Expected results

Actual results

Code sample

Screenshots or Video

Logs

Flutter Doctor output

Metadata

Metadata

Assignees

Labels

Type

Fields

Projects

Milestone

Relationships

Development

Issue actions