updated serve.js

Author: AndreiSoroka

packages/@vue/cli-service/lib/commands/serve.js

@@ -116,7 +116,9 @@ module.exports = (api, options) => {
       protocol,
       host,
       port,
-      isAbsoluteUrl(options.publicPath) ? '/' : options.publicPath
+      isAbsoluteUrl(options.publicPath) || options.publicPath === 'auto'
+        ? '/'
+        : options.publicPath
     )
     const localUrlForBrowser = publicUrl || urls.localUrlForBrowser
 

packages/@vue/cli-service/lib/util/prepareURLs.js

@@ -17,14 +17,14 @@ module.exports = function prepareUrls (protocol, host, port, pathname = '/') {
       protocol,
       hostname,
       port,
-      pathname: pathname === 'auto' ? '' : pathname
+      pathname
     })
   const prettyPrintUrl = hostname =>
     url.format({
       protocol,
       hostname,
       port: chalk.bold(port),
-      pathname: pathname === 'auto' ? '' : pathname
+      pathname
     })
 
   const isUnspecifiedHost = host === '0.0.0.0' || host === '::'