Ionic component styles not loading with Angular SSR

I'm using Angular 18 standalone application with Ionic 8 and enabled server side rendering. When I try to run SSR, the styles of ionic components are not loading. It just loads the plain html.

server.ts:

commonEngine
.render({
bootstrap,
documentFilePath: indexHtml,
url: `${protocol}://${headers.host}${originalUrl}`,
publicPath: distFolder,
inlineCriticalCss: false,
providers: [
{ provide: APP_BASE_HREF, useValue: req.baseUrl },
{ provide: 'REQUEST', useValue: req },
{ provide: 'RESPONSE', useValue: res }
]
})
.then((html) => {
// Inietta dinamicamente il CSS nel contenuto HTML generato
if (cssFileName) {
html = html.replace(
'</head>',
`<link rel="stylesheet" href="${cssFileName}"></head>`
);
}
res.send(html);
})
.catch((err) => next(err));
});

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