Fix dashboard exposition through a router

webui/quasar.conf.js

@@ -120,6 +120,11 @@ module.exports = configure(function (ctx) {
     supportIE: false,
 
     build: {
+      // Needed to have relative assets in the index.html
+      // https://github.com/quasarframework/quasar/issues/8513#issuecomment-1127654470
+      extendViteConf(viteConf, {isServer, isClient}) {
+        viteConf.base = "";
+      },
      viteVuePluginOptions: {
         template: {
           compilerOptions: {