Flutter cant load image from url

Question

════════ Exception caught by image resource service ════════════════════════════ The following ImageCodecException was thrown resolving an image codec: Failed to load network image. Image URL: https://cdn.sportmonks.com/images/soccer/leagues/5.png Trying to load an image from another domain? Find answers at: https://flutter.dev/docs/development/platform-integration/web-images

When i try the demo URL https://picsum.photos/250?image=9 it is working but the url above is good so what can be the problem?

class ListRow extends StatelessWidget {
  final String name;
  final imageUrl;
  const ListRow({Key key, this.name, this.imageUrl}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Row(
      crossAxisAlignment: CrossAxisAlignment.center,
      mainAxisAlignment: MainAxisAlignment.start,
      children: <Widget>[
        Container(
          width: 18,
          height: 18,
          child: Image(
            image: NetworkImage(
                'https://cdn.sportmonks.com/images/soccer/leagues/5.png'),
          ),
        ),
        SizedBox(width: 10),
        Flexible(
          child: new Text(
            name,
            style:
                new TextStyle(fontWeight: FontWeight.bold, color: Colors.black),
          ),
        ),
      ],
    );
  }
}

Answer 1

I get the same error, for a couple of weeks now, when trying to run an app from the master channel.

I got it working by forcing the web renderer to be HTML:

flutter run -d chrome --no-sound-null-safety --web-renderer=html

When you build your app for web you should:

flutter build web --no-sound-null-safety --web-renderer=html

By default the web renderer is auto, choosing the canvaskit web renderer on desktop browsers and html on mobile.

If you want to avoid this altogether you can stay on the beta or dev channels.

Answer 2

So flutter web has upgraded default rendered(HTML) -> CanvasKit and it has better performance.

You are most likely getting this error because CORS(can check chrome network tab to be sure).

To solve it could:

1. Update cors settings server side: https://stackoverflow.com/a/66104543/4679965

2. Run app with old rendered:

flutter run -d chrome --web-renderer html // to run the app

flutter build web --web-renderer html --release // to generate a production build

3. Or display images with platform view:

import 'dart:html';
import 'package:flutter/material.dart';
import 'dart:ui' as ui;

class MyImage extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    String imageUrl = "image_url";
    // https://github.com/flutter/flutter/issues/41563
    // ignore: undefined_prefixed_name
    ui.platformViewRegistry.registerViewFactory(
      imageUrl,
      (int _) => ImageElement()..src = imageUrl,
    );
    return HtmlElementView(
      viewType: imageUrl,
    );
  }
}

Answer 3

if it is working with another image then it should be a server-side error where the image is stored.