patch: Handle absolute url

lib/index.js

@@ -2,6 +2,7 @@ const { join } = require('path')
 const rp = require('request-promise-native')
 const stdMocks = require('std-mocks')
 const enableDestroy = require('server-destroy')
+const isAbsoluteUrl = require('is-absolute-url')
 
 let port = 8000
 
@@ -54,7 +55,10 @@ exports.stop = (server) => {
 	})
 }
 
-const url = (path) => `http://localhost:${port}` + join('/', (path || ''))
+const url = (path) => {
+	if (typeof path === 'string' && isAbsoluteUrl(path)) return path
+	return `http://localhost:${port}` + join('/', (path || ''))
+}
 exports.url = url
 
 exports.$get = (path, options) => {