Hi,
this is still an issue with quasar dev in WSL. I don’t think it’s an issue with windows 10 since VUE projects are opened without issues with npm run serve. And that is able to open the browser.

$quasar info

Operating System - Linux(4.4.0-18362-Microsoft) - linux/x64 NodeJs - 10.18.1 Global packages NPM - 6.13.6 yarn - Not installed @quasar/cli - 1.0.5 cordova - Not installed Important local packages quasar - 1.7.1 – Build high-performance VueJS user interfaces (SPA, PWA, SSR, Mobile and Desktop) in record time @quasar/app - 1.5.0 – Quasar Framework local CLI @quasar/extras - 1.4.0 – Quasar Framework fonts, icons and animations vue - 2.6.11 – Reactive, component-oriented view layer for modern web interfaces. vue-router - 3.1.3 – Official router for Vue.js 2 vuex - 3.1.2 – state management for Vue.js electron - Not installed electron-packager - Not installed electron-builder - Not installed @capacitor/core - Not installed @capacitor/cli - Not installed @capacitor/android - Not installed @capacitor/ios - Not installed @babel/core - 7.8.3 – Babel compiler core. webpack - 4.41.5 – Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, … and your custom stuff. webpack-dev-server - 3.10.1 – Serves a webpack app. Updates the browser on changes. workbox-webpack-plugin - 4.3.1 – A plugin for your Webpack build process, helping you generate a manifest of local files that workbox-sw should precache. register-service-worker - 1.6.2 – Script for registering service worker, with hooks Quasar App Extensions None installed