Fix res.sendFile logging standard write errors

fixes #2433

History.md

@@ -1,6 +1,7 @@
 unreleased
 ==========
 
+  * Fix `res.sendFile` logging standard write errors
   * deps: etag@~1.5.1
   * deps: proxy-addr@~1.0.4
     - deps: ipaddr.js@0.1.5

lib/response.js

@@ -398,8 +398,8 @@ res.sendFile = function sendFile(path, options, fn) {
     if (fn) return fn(err);
     if (err && err.code === 'EISDIR') return next();
 
-    // next() all but aborted errors
-    if (err && err.code !== 'ECONNABORT') {
+    // next() all but write errors
+    if (err && err.code !== 'ECONNABORT' && err.syscall !== 'write') {
       next(err);
     }
   });

test/res.sendFile.js

@@ -69,6 +69,27 @@ describe('res', function(){
       .end(done);
     })
 
+    it('should not error if the client aborts', function (done) {
+      var cb = after(1, done);
+      var app = express();
+
+      app.use(function (req, res) {
+        setImmediate(function () {
+          res.sendFile(path.resolve(fixtures, 'name.txt'));
+          cb();
+        });
+        test.abort();
+      });
+
+      app.use(function (err, req, res, next) {
+        err.code.should.be.empty;
+        cb();
+      });
+
+      var test = request(app).get('/');
+      test.expect(200, cb);
+    })
+
     describe('with "dotfiles" option', function () {
       it('should not serve dotfiles by default', function (done) {
         var app = createApp(path.resolve(__dirname, 'fixtures/.name'));