Doesn't seem to recognize non proxy routes (express)

Expected behavior

When setting up an express router, routes not in proxy context are not recognized. IE if filter function returns false, non proxy routes in sub application should be found.

Actual behavior

404 for routes in sub application

Setup

• http-proxy-middleware: 0.17.0
• server: express
• other relevant modules

proxy middleware configuration

var filter = function (pathname, req) {
    return pathname.match(new RegExp('^/api'));
};
var apiProxy = proxy(filter, {target: 'http://www.example.org:8000'});

server mounting

var sub = new express.Router();
sub.use(proxy);

// main app, mount the sub application
var app = express();
app.use('/sub', sub);

other route in sub application

sub.get('/someroute',
   function(req, res, next) {
      // won't find route
   }
);

[newmanw]

@chimurai absolutely.

https://github.com/newmanw/hpm-sub

Proxy works: ‘http://localhost:3000/sub/api’ Cannot hit ‘http://localhost:3000/sub/hello’

[chimurai]

Just pushed v0.17.1 with the fix.

Thanks for reporting the issue and helping out with debugging. Greatly appreciated!