perf: test prefetch

Author: dongsuo

vue.config.js

@@ -17,6 +17,8 @@ module.exports = {
   outputDir: 'docs',
   productionSourceMap: false,
   chainWebpack(config) {
+    // when there are many pages, it will cause too many meaningless requests
+    config.plugins.delete('prefetch')
     // set svg-sprite-loader
     config.module
       .rule('svg')