[bug] dynamic create webview in current window crash in windows 10

[chenrensong]

Describe the bug

#[tauri::command]
pub fn create_webview_inner(
window: tauri::Window,
url: String,
x: f64,
y: f64,
width: f64,
height: f64,
) -> Result<String, String> {
let window_id = WINDOW_ID.fetch_add(1, atomic::Ordering::SeqCst);
let label = format!("webview_{}", window_id);
let webview_builder =
tauri::webview::WebviewBuilder::new(label.clone(), WebviewUrl::App(url.parse().unwrap()));
let _webview = window.add_child(
webview_builder.auto_resize(),
LogicalPosition::new(x, y),
LogicalSize::new(width, height),
);
Ok(label)
}

The above code can be allowed normally on Mac, but cannot be allowed on Windows

Reproduction

No response

Expected behavior

No response

Full tauri info output

thread 'main' has overflowed its stack

Stack trace

No response

Additional context

No response

[JingyuanZhang]

I have encountered this issue as well.

[FabianLars]

Can one of you please post the output of the tauri info command as required by the issue template?
And if you're on v2, do you have tauri's unstable feature flag enabled or not? (if you don't know then the answer is probably no)

[lindongchen]

Similar issues.

import { WebviewWindow } from '@tauri-apps/api/webviewWindow'
import { getCurrent } from '@tauri-apps/api/window'
...
                       if(platform.value=='windows'){
				options.parent = getCurrent();
			}
			const webview = new WebviewWindow(`${app.name}-webview`, options);
			webview.once('tauri:https://created', function (d) {
				console.log('tauri:https://created')
				console.log(d)
			// webview successfully created
			});
			webview.once('tauri:https://error', function (e) {
				console.log('tauri:https://error')
				console.log(e)
			// an error happened creating the webview
			});
...
[dependencies]
fix-path-env = { git = "https://github.com/tauri-apps/fix-path-env-rs" }
tauri = { version = "=2.0.0-beta.22", features = ["macos-proxy", "unstable"] }
tauri-utils = "=2.0.0-beta.17"
tauri-plugin-shell = "=2.0.0-beta.5"
serde = { version = "1", features = ["derive"] }
serde_json = "1"
tauri-plugin-process = "=2.0.0-beta.5"
tauri-plugin-http = "=2.0.0-beta.5"
tauri-plugin-os = "=2.0.0-beta.5"
tauri-plugin-fs = "=2.0.0-beta.7"
tauri-plugin-deep-link = "=2.0.0-beta.6"

Whether in Win10/Win11, creating a window will crash, tauri:https://created It will happen, but there are no errors,

[FabianLars]

@lindongchen Does this also happen if you remove the unstable flag?

[chenrensong]

@lindongchen Does this also happen if you remove the unstable flag?

error[E0599]: no method named add_child found for struct tauri::Window in the current scope
--> src\webview.rs:35:27
|
35 | let _webview = window.add_child(
| -------^^^^^^^^^ method not found in Window

error[E0599]: no method named add_child found for struct tauri::Window in the current scope
--> src\webview.rs:71:27
|
71 | let _webview = window.add_child(
| -------^^^^^^^^^ method not found in Window

error[E0599]: no method named get_webview found for struct AppHandle in the current scope
--> src\webview.rs:81:22
|
81 | match app_handle.get_webview(label) {

[lindongchen]

I have tracked the source code and found that many functions are enabled under the unstable flag, so removing the unstable flag seems meaningless @FabianLars

[FabianLars]

Apologies, i only looked at your js example and forgot about the initial issue code...

[chenrensong]

May I know which version can be fixed

[FabianLars]

The implementations behind the unstable flag currently do not get much priority so i can't give you an ETA.

[chenrensong]

The implementations behind the unstable flag currently do not get much priority so i can't give you an ETA.

I have a very important project that relies on this feature. Can you help optimize it

[FabianLars]

No, sorry. I don't have any spare time myself.

One thing I just noticed though, did you ever try making your create_webview_inner command async? That was already a requirement for webview/window creation on windows in v1 so maybe it's the issue here (though it should cause a deadlock, not a crash).

[WalrusSoup]

Check src-tauri/capabilities/desktop.json for duplicate permissions. Duplicate permissions here will cause a stack overflow on windows - no idea why. Tested on Win10/11.

We had an extra notification:default and it was just having a meltdown after it launched the webview.

edit: nevermind, it does launch now when debugging but crashes in production builds still.