How to set the base URI for the grunt server

I've used a yeoman webapp generator to build my app.

During the development, I simply used grunt serve to preview the app.

Now that I'm ready to deploy my app, I've found out that the production environment has a different root context than the development one. In other words, instead of:

http://base:port/

I'm forced to use

http://base:port/subdir_name/

This, of course, breaks some stuff.

Is there any way to configure the connect server that grunt uses, to take this new root context as it's base URI?

I'm not sure if you've found a solution already, but I managed to work around this by using grunt-connect-proxy capability of rewriting it's redirects. This is what my config looks like:

connect: {
  options: {
    port: 8001,
    // Change this to '0.0.0.0' to access the server from outside.
    hostname: '0.0.0.0',
    livereload: 35729
  },
  proxies: [
    {
        context: '/subdir_name/',
        host: 'localhost',
        port: 8001,
        https: false,
        xforward: false,
        rewrite: {
          '^/subdir_name': ''
        },
        headers: {
            'x-forwarded-server': 'Grunt Localhost development'
        }
    }
  ],
  livereload: {
    options: {
      open: true,
      middleware: function (connect, options) {
        if (!Array.isArray(options.base)) {
            options.base = [options.base];
        }

        // Setup the proxy
        var middlewares = [];

        middlewares.push(connect.static('.tmp'));
        middlewares.push(connect().use(
            '/bower_components',
            connect.static('./bower_components')
          ));
        middlewares.push(connect().use(
            '/app/styles',
            connect.static('./app/styles')
          ));
        middlewares.push(connect.static(appConfig.app));
        middlewares.push(require('grunt-connect-proxy/lib/utils').proxyRequest);
        // Serve static files.
        options.base.forEach(function(base) {
            middlewares.push(connect.static(base));
        });

        // Make directory browse-able.
        var directory = options.directory || options.base[options.base.length - 1];
        middlewares.push(connect.directory(directory));
        return middlewares;
      }
    }
  },