server.js

import prerender from 'prerender';
import memoryCache from 'prerender-memory-cache';

const server = prerender({
    chromeLocation: '/usr/bin/chromium',
    chromeFlags: [
        '--no-sandbox', 
        '--headless=new', 
        '--disable-gpu', 
        '--remote-debugging-port=9222', 
        '--hide-scrollbars',
        '--disable-dev-shm-usage',
        '--ignore-certificate-errors',
        '--allow-insecure-localhost'
    ]
});

process.env.CACHE_MAXSIZE = process.env.CACHE_MAXSIZE || 1000;
process.env.CACHE_TTL = process.env.CACHE_TTL || 43200;

server.use({
    tabCreated: (req, res, next) => {
        const tab = req.prerender.tab;

        if (tab) {
            tab.Console.enable();
            tab.Network.enable();

            tab.Console.messageAdded((params) => {
                console.log('🟡 Browser log:', params.message.text);
            });

            tab.Network.loadingFailed((params) => {
                console.log('🔴 Network Failed:', params.errorText, params.url);
            });

            tab.Runtime.enable();
            tab.Runtime.exceptionThrown((exception) => {
                console.log('💥 JS Exception:', exception.exceptionDetails.text);
            });
        }

        next();
    }
});

server.use({
    beforeSend: (req, res, next) => {
        if (req.prerender.res) {
            const body = req.prerender.res.body || '';
            req.prerender.res.headers = {
                'content-type': 'text/html; charset=utf-8',
                'content-length': Buffer.byteLength(body, 'utf8'),
                // 'cache-control': 'public, max-age=600'
            };
        }
        next();
    }
});


server.use(prerender.removeScriptTags()); 

server.use(memoryCache);

console.log('Prerender on Node 24 is starting...');
server.start();