Unsupported operation: toImage is not supported on the Web

[stoneLee81]

There are some scenarios where html engine must be used. For example, in WeChat. Have you considered adding html2canvas to make screenshots support web?

[meeximum]

I have the same problem, on some Android devices it works on some not? Very strange :-/

[bw-flagship]

I openede an issue in the flutter repo to propose support toImage on html renderer https://github.com/flutter/flutter/issues/102636

[karlreginaldo]

So, I've had this problem for a while, and my co-worker solved it.

Go to web/index.html

Then, find the ### onEntrypointLoaded

Change it to this:

onEntrypointLoaded: async (engineInitializer) => {
const config = { renderer: "canvaskit" };
const appRunner = await engineInitializer.initializeEngine(config);
await appRunner.runApp();
}

The reason it works on PC/laptop is that it's set to canvaskit by default, but on the phone, it's not because it's set to auto. The reference is below.

https://docs.flutter.dev/platform-integration/web/renderers

[TetrixGauss]

Ok but what to do if i need to use the html renderer????