prerender-spa-plugin和vue-meta-info做静态化打包,动态更改keywords和description

请问,我用prerender-spa-plugin和vue-meta-info做静态化打包,动态更改keywords和description,在直接放到服务器上的sit环境,查看源代码没有问题,但是放到生产上却不行,查看源代码没有看到keywords和description,这是怎么回事儿啊

const PrerenderSPAPlugin = require("prerender-spa-plugin");
const Renderer = PrerenderSPAPlugin.PuppeteerRenderer;

const path = require("path");
module.exports = {
    configureWebpack: (config) => {
        if (process.env.VUE_APP_FLAG !== "production") return;
        return {
            plugins: [
            new PrerenderSPAPlugin({
                staticDir: path.join(__dirname, "dist"),
                routes: ["/ImLs7","/AboutUs","/ConceptCar","/Partner","/NewsList","/NewsDetails","/JoinUs","/Await","/MapDepot"],
                renderer: new Renderer({
                inject: {
                    foo: "bar",
                },
                headless: false,
                renderAfterDocumentEvent: "render-event",
                }),
            }),
            ],
        };
    },
    // 输出文件目录
    outputDir: process.env.outputDir,
    publicPath:"/",
    devServer: {
        host: '0.0.0.0',
        hot: true,
        disableHostCheck: true,
    },
    
}


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