fixed issue with rewrite 'from' urls containing ports

lib/local-web-server.js

@@ -14,7 +14,7 @@ const pathToRegexp = require('path-to-regexp')
 module.exports = localWebServer
 
 /**
- * Returns a Koa application you can launch or mix into an existing app. 
+ * Returns a Koa application you can launch or mix into an existing app.
  *
  * @param [options] {object} - options
  * @param [options.static] {object} - koa-static config
@@ -190,7 +190,7 @@ function proxyRequest (route, app) {
 
     /* test no keys remain in the new path */
     keys.length = 0
-    pathToRegexp(route.new, keys)
+    pathToRegexp(url.parse(route.new).path, keys)
     if (keys.length) {
       this.throw(500, `[PROXY] Invalid target URL: ${route.new}`)
       return next()