[Bug]: Transparent window and shadow is shown on load with frame: false

[facuparedes]

Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Electron Version

13.1.6

What operating system are you using?

Windows

Operating System Version

Windows 11 build 22000.51

What arch are you using?

x64

Last Known Working Electron version

No response

Expected Behavior

Show just a white (or a custom background color) window. Like this initial screen:

The screenshot was taken without frame: false:

const { app, BrowserWindow } = require("electron");

function createWindow() {
  const win = new BrowserWindow({
    width: 800,
    height: 600,
  });

  win.loadFile("index.html");
}

app.whenReady().then(() => {
  createWindow();
});

app.on("window-all-closed", function () {
  app.quit();
});

Actual Behavior

A transparent window with a shadow is shown when a BrowserWindow is created with frame: false. After a while, html is loaded.

Testcase Gist URL

https://gist.github.com/facuparedes/0ad564fd2475074742faed478b7da3a1

Additional Information

No response

[Levminer]

Yes I can confirm this bug too in my app on Windows 11 (https://github.com/Levminer/authme)

	window_splash = new BrowserWindow({
		width: 500,
		height: 550,
		transparent: true,
		frame: false,
		alwaysOnTop: true,
		resizable: false,
		webPreferences: {
			nodeIntegration: true,
			enableRemoteModule: true,
			contextIsolation: false,
		},
	})

And yes #30024 workaround not fixing it.

The frames show up after there is no other window in front of it. If you maxzime a window in front of it it vanishes and after minimzing all windows is re appers.

[Levminer]

Hey @facuparedes

EDIT: Now after a restart I got this bug again, no idea what is happening.

I think this was a problem with Windows 11, not Electron. After updating to the latest build (22000.65) I can't reprodue this issue. I think this is closable.

[facuparedes]

Hey @Levminer
I tried this bug and #30024 in latest Windows 10 and Windows 11 (22000.65), and both have the issues.

#30024 was confirmed by @erickzhao on Discord

I think both issues are related

[Levminer]

@facuparedes Okay I think after the pc goes to sleep this bug vanishes. Very strange.

[geroale]

Same issue here

[github-actions]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[pushkin-]

repros in Electron 21. Wonder if this PR helps with this

[github-actions]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. If you have any new additional information—in particular, if this is still reproducible in the latest version of Electron or in the beta—please include it with your comment!

[github-actions]

This issue has been closed due to inactivity, and will not be monitored. If this is a bug and you can reproduce this issue on a supported version of Electron please open a new issue and include instructions for reproducing the issue.