返回脚本文件

@Get('script/xxxx.js')
@Header('Content-Type', 'application/javascript; charset=utf-8')
async getInjectAd(@Res() res: Response) {
    const filePath = path.join(process.cwd(), 'script', 'xxxx.js');
    try {
        const content = await fs.readFile(filePath, 'utf8');
        res.send(content);
    } catch (err) {
        res.status(404).send('script/inject-ad.js not found');
    }
}