fix judgement of trailing slash

index.js

@@ -37,14 +37,14 @@ function send(ctx, path, opts) {
   // options
   debug('send "%s" %j', path, opts);
   var root = opts.root ? normalize(resolve(opts.root)) : '';
+  var trailingSlash = '/' == path[path.length - 1];
   path = path[0] == '/' ? path.slice(1) : path;
   var index = opts.index;
   var maxage = opts.maxage || opts.maxAge || 0;
   var hidden = opts.hidden || false;
   var gzip = opts.gzip || opts.gzip === undefined ? true : false;
 
   return function *(){
-    var trailingSlash = '/' == path[path.length - 1];
     var encoding = this.acceptsEncodings('gzip', 'deflate', 'identity');
 
     // normalize path

test/index.js

@@ -143,6 +143,20 @@ describe('send(ctx, file)', function(){
         .expect(200)
         .expect('html index', done);
       })
+
+      it('should serve it', function(done){
+        var app = koa();
+
+        app.use(function *(){
+          var opts = { root: 'test/fixtures/world', index: 'index.html' };
+          yield send(this, this.path, opts);
+        });
+
+        request(app.listen())
+        .get('/')
+        .expect(200)
+        .expect('html index', done);
+      })
     })
   })