From 55816543c46e75aa53481ac95a89ff6f87a2d704 Mon Sep 17 00:00:00 2001
From: JK <jingkai.zhao@foxmail.com>
Date: Thu, 29 Jun 2017 12:37:03 +0800
Subject: [PATCH] fix(ssr): reference error when create $ssrContext for root
 component (#5981)

fix #5941
---
 src/core/index.js                   |  2 +-
 test/ssr/ssr-basic-renderer.spec.js | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/core/index.js b/src/core/index.js
index 7045332e08..b2a0cb8c5a 100644
--- a/src/core/index.js
+++ b/src/core/index.js
@@ -11,7 +11,7 @@ Object.defineProperty(Vue.prototype, '$isServer', {
 Object.defineProperty(Vue.prototype, '$ssrContext', {
   get () {
     /* istanbul ignore next */
-    return this.$vnode.ssrContext
+    return this.$vnode && this.$vnode.ssrContext
   }
 })
 
diff --git a/test/ssr/ssr-basic-renderer.spec.js b/test/ssr/ssr-basic-renderer.spec.js
index 053bde1a00..7cbacbee72 100644
--- a/test/ssr/ssr-basic-renderer.spec.js
+++ b/test/ssr/ssr-basic-renderer.spec.js
@@ -50,4 +50,21 @@ describe('SSR: basicRenderer', () => {
       done()
     })
   })
+
+  // #5941
+  it('should work peoperly when accessing $ssrContext in root component', done => {
+    let ssrContext
+    renderToString(new Vue({
+      template: `
+        <div></div>
+      `,
+      created () {
+        ssrContext = this.$ssrContext
+      }
+    }), (err, result) => {
+      expect(err).toBeNull()
+      expect(ssrContext).toBeUndefined()
+      done()
+    })
+  })
 })