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Created April 21, 2025 11:32
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Font rendering issue in electron (zoomed)
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<!-- Relaxed CSP for testing -->
<meta http-equiv="Content-Security-Policy" content="
default-src 'self';
script-src 'self' 'unsafe-inline';
style-src 'self' 'unsafe-inline' https://fonts.googleapis.com;
font-src 'self' https://fonts.gstatic.com;
">
<link href="https://fonts.googleapis.com/css?family=Syncopate:300,400,500,600,700,900&display=swap" rel="stylesheet">
<title>Font rendering issue</title>
<style type="text/css">
.test {
font-family: 'Syncopate', sans-serif;
font-weight: bold;
font-size: 12px;
text-transform:uppercase;
}
</style>
</head>
<body>
<h1>Font Rendering Issue</h1>
<p>
The text in below para will break if you click on view > zoom out. This does not break when we zoom out in browser. It only breaks in electron.
</p>
<p class="test">This is using Syncopate font family. abcdefghijklmnopqrst. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789</p>
<script src="./renderer.js"></script>
</body>
</html>
// Modules to control application life and create native browser window
const { app, BrowserWindow } = require('electron')
const path = require('node:path')
function createWindow () {
// Create the browser window.
const mainWindow = new BrowserWindow({
width: 800,
height: 600,
webPreferences: {
preload: path.join(__dirname, 'preload.js')
}
})
// and load the index.html of the app.
mainWindow.loadFile('index.html')
// Open the DevTools.
// mainWindow.webContents.openDevTools()
}
// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
createWindow()
app.on('activate', function () {
// On macOS it's common to re-create a window in the app when the
// dock icon is clicked and there are no other windows open.
if (BrowserWindow.getAllWindows().length === 0) createWindow()
})
})
// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', function () {
if (process.platform !== 'darwin') app.quit()
})
// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.
/**
* The preload script runs before `index.html` is loaded
* in the renderer. It has access to web APIs as well as
* Electron's renderer process modules and some polyfilled
* Node.js functions.
*
* https://www.electronjs.org/docs/latest/tutorial/sandbox
*/
window.addEventListener('DOMContentLoaded', () => {
const replaceText = (selector, text) => {
const element = document.getElementById(selector)
if (element) element.innerText = text
}
for (const type of ['chrome', 'node', 'electron']) {
replaceText(`${type}-version`, process.versions[type])
}
})
/**
* This file is loaded via the <script> tag in the index.html file and will
* be executed in the renderer process for that window. No Node.js APIs are
* available in this process because `nodeIntegration` is turned off and
* `contextIsolation` is turned on. Use the contextBridge API in `preload.js`
* to expose Node.js functionality from the main process.
*/
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