From 1ce37bdc2ed2977ff4a0a7e5014c915d02915a4e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=A8=8B=E5=BA=B7?= <me@chengkang.pw>
Date: Wed, 31 Oct 2018 00:22:59 +0000
Subject: [PATCH] fix: missing variable declaration (#660)

### Issue

<img width="491" alt="screenshot 2018-10-30 at 23 31 35" src="https://user-images.githubusercontent.com/8396515/47757020-58587080-dc9c-11e8-867c-dc3feabcb651.png">

Sorry, forgot to include this line in previous PR.

-----
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* [x] Make sure you are merging your commits to `master` branch.
* [x] Add some descriptions and refer relative issues for you PR.
* [x] DO NOT include files inside `lib` directory.
---
 src/core/render/compiler.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/core/render/compiler.js b/src/core/render/compiler.js
index 74d9ed382..6ea1fda4c 100644
--- a/src/core/render/compiler.js
+++ b/src/core/render/compiler.js
@@ -71,6 +71,7 @@ export class Compiler {
     this.router = router
     this.cacheTree = {}
     this.toc = []
+    this.cacheTOC = {}
     this.linkTarget = config.externalLinkTarget || '_blank'
     this.contentBase = router.getBasePath()