Fix the url generation for prefixed paths

Fixes kadirahq#508

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+### next
+* Fix the url generation for prefixed paths. See: [#508](https://github.com/kadirahq/flow-router/issues/508)
+
 ### v2.10.0
 * Update few dependencies to the latest versions: pagejs, qs, cosmos:browserify
 
@@ -17,7 +20,7 @@
 
 ### v2.6.1
 
-* Fix [#143](https://github.com/kadirahq/flow-router/issues/314). 
+* Fix [#143](https://github.com/kadirahq/flow-router/issues/314).
   This says that when we are doing a trigger redirect,
   We won't get reactive changes like: `getRouteName()`
 
@@ -53,7 +56,7 @@
 * Use pagejs.redirect() for our redirection process.
 * Above fixes [#239](https://github.com/kadirahq/flow-router/issues/239)
 
-### v2.0.0 
+### v2.0.0
 
 * Released 2.0  :)
 * Now flow-router comes as `kadira:flow-router`

lib/router.js

@@ -1,4 +1,9 @@
 Router.prototype.url = function() {
-  var path = this.path.apply(this, arguments);
-  return Meteor.absoluteUrl(path.replace(/^\//, ''));
+  // We need to remove the leading base path, or "/", as it will be inserted
+  // automatically by `Meteor.absoluteUrl` as documented in:
+  // http://docs.meteor.com/#/full/meteor_absoluteurl
+  var completePath = this.path.apply(this, arguments);
+  var basePath = this._basePath || '/';
+  var pathWithoutBase = completePath.replace(new RegExp('^' + basePath), '');
+  return Meteor.absoluteUrl(pathWithoutBase);
 };