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Electron 5.x demo app that demonstrates how to enable ES modules support.
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <base href="app://./" /> | |
| <meta http-equiv="Content-Security-Policy" content="script-src 'self' app:; object-src 'self' app:;"> | |
| <script type="module" src="./module.js"></script> | |
| </head> | |
| <body> | |
| Check the console! | |
| </body> | |
| </html> |
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| const { app, protocol, BrowserWindow } = require('electron'); | |
| const createProtocol = require('./protocol.js'); | |
| const url = require('url'); | |
| const path = require('path'); | |
| const SCHEME_NAME = 'app'; | |
| // Scheme must be registered before the app is ready | |
| protocol.registerSchemesAsPrivileged([{ | |
| scheme: SCHEME_NAME, | |
| standard: true, | |
| secure: true, | |
| bypassCSP: false, | |
| allowServiceWorkers: true, | |
| supportFetchAPI: true, | |
| corsEnabled: false | |
| }]); | |
| function createWindow(loadPath) { | |
| let win = new BrowserWindow({ | |
| webPreferences: { | |
| nodeIntegration: true | |
| }, | |
| width: 1000, | |
| height: 700 | |
| }); | |
| win.loadURL(url.format({ | |
| pathname: loadPath, | |
| protocol: SCHEME_NAME, | |
| slashes: true | |
| })); | |
| win.webContents.openDevTools(); | |
| } | |
| app.on('ready', () => { | |
| createProtocol(SCHEME_NAME); | |
| createWindow('./index.html'); | |
| }); |
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| console.log("ES module loaded"); |
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| { | |
| "name": "demo", | |
| "version": "2.0.0", | |
| "main": "main.js" | |
| } |
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| const { protocol } = require('electron'); | |
| const { readFile } = require('fs'); | |
| const { extname, join, dirname } = require('path'); | |
| const { URL } = require('url'); | |
| const createProtocol = (scheme, normalize = true) => { | |
| console.log(`Registering ${scheme} protocol...`); | |
| protocol.registerBufferProtocol(scheme, | |
| (request, respond) => { | |
| let pathName = new URL(request.url).pathname; | |
| pathName = decodeURI(pathName); // Needed in case URL contains spaces | |
| console.log(`${scheme}:// request for ${pathName}.`); | |
| readFile(join(__dirname, pathName), (error, data) => { | |
| if (error) { | |
| console.warn('Error:'); | |
| console.log(error); | |
| // Respond with the NET_ERROR code for FILE_NOT_FOUND | |
| // See: https://cs.chromium.org/chromium/src/net/base/net_error_list.h | |
| respond(-6); | |
| return; | |
| } | |
| let extension = extname(pathName).toLowerCase(); | |
| let mimeType = ''; | |
| if (extension === '.js' || extension === '.mjs') { | |
| mimeType = 'text/javascript'; | |
| } | |
| else if (extension === '.html') { | |
| mimeType = 'text/html'; | |
| } | |
| else if (extension === '.css') { | |
| mimeType = 'text/css'; | |
| } | |
| else if (extension === '.svg' || extension === '.svgz') { | |
| mimeType = 'image/svg+xml'; | |
| } | |
| else if (extension === '.json') { | |
| mimeType = 'application/json'; | |
| } | |
| respond({ mimeType, data }); | |
| }); | |
| }, | |
| (error) => { | |
| if (error) { | |
| console.error(`Failed to register ${scheme} protocol`, error); | |
| } | |
| } | |
| ); | |
| }; | |
| module.exports = createProtocol; |
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