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Add note about deferred loading to flutter.dev/platform-integration/web/wasm #13648

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Add note about deferred loading to flutter.dev/platform-integration/web/wasm #13648

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10 changes: 10 additions & 0 deletions sites/docs/src/content/platform-integration/web/wasm.md
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Expand Up @@ -70,6 +70,16 @@ $ flutter build web --wasm
The command produces output into the `build/web` directory relative to the
package root, just like `flutter build web`.

:::note
Enabling Wasm compilation for a Flutter web app does not use deferred loading
by default. Deferred loading in Wasm is experimental and can be enabled
using the `--enable-wasm-deferred-loading` flag:

```console
$ flutter build web --wasm --enable-wasm-deferred-loading
```
:::

### Open the app in a compatible web browser
Even with the `--wasm` flag, Flutter will still compile the application to
JavaScript. If WasmGC support is not detected at runtime, the JavaScript output
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