added regression test for #847

test/regression.js

@@ -0,0 +1,22 @@
+
+var express = require('../')
+  , request = require('./support/http');
+
+describe('throw after .end()', function(){
+  it('should fail gracefully', function(done){
+    var app = express();
+
+    app.get('/', function(req, res){
+      res.end('yay');
+      throw new Error('boom');
+    });
+
+    request(app)
+    .get('/')
+    .end(function(res){
+      res.should.have.status(200);
+      res.body.should.equal('yay');
+      done();
+    });
+  })
+})