Summary
After upgrading from @webviewjs/webview v0.3.0 to v0.4.0, on macOS the webview
content is not painted on launch. The window appears blank until the user
resizes the window — at which point the content renders immediately. Downgrading
back to v0.3.0 with the exact same code renders correctly on launch without any
interaction.
Steps to reproduce
import { Application } from "@webviewjs/webview";
const app = new Application();
const window = app.createBrowserWindow();
const webview = window.createWebview({
html: `<!DOCTYPE html>
<html>
<head>
<title>Webview</title>
</head>
<body>
<h1 id="output">Hello world!</h1>
</body>
</html>
`,
});
app.run();
- On v0.3.0: "Hello world!" is displayed immediately on launch.
- On v0.4.0: the window is blank until the user resizes it; the content then
renders and stays correct afterwards.
Expected behavior
Webview content is painted on launch, as in v0.3.0.
Actual behavior
Content is not rendered until the window is resized. Once resized, the content
renders and subsequent updates work normally.
Environment
@webviewjs/webview: 0.4.0 (broken) / 0.3.0 (works)- OS: macOS 15.7.7 (Build 24G720), Darwin Kernel 24.6.0
- Machine: MacBook Pro 17,1 (Apple M1, 8 GB RAM), arm64
- Node.js: v24.18.0
- Package manager: pnpm 10.6.2
Regression
This is a regression from v0.3.0 → v0.4.0 on macOS. Same code, same machine —
only the @webviewjs/webview version differs.
Summary
After upgrading from
@webviewjs/webviewv0.3.0 to v0.4.0, on macOS the webviewcontent is not painted on launch. The window appears blank until the user
resizes the window — at which point the content renders immediately. Downgrading
back to v0.3.0 with the exact same code renders correctly on launch without any
interaction.
Steps to reproduce
renders and stays correct afterwards.
Expected behavior
Webview content is painted on launch, as in v0.3.0.
Actual behavior
Content is not rendered until the window is resized. Once resized, the content
renders and subsequent updates work normally.
Environment
@webviewjs/webview: 0.4.0 (broken) / 0.3.0 (works)Regression
This is a regression from v0.3.0 → v0.4.0 on macOS. Same code, same machine —
only the
@webviewjs/webviewversion differs.