From 4020c36c19e5d490c5c6dbb03add91a4c5a7bfd7 Mon Sep 17 00:00:00 2001
From: DIYgod <diy.d.god@gmail.com>
Date: Wed, 28 Aug 2019 16:14:50 +0800
Subject: [PATCH] fix: check null base url

---
 lib/middleware/parameter.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/middleware/parameter.js b/lib/middleware/parameter.js
index 863e86286..878c8aad3 100644
--- a/lib/middleware/parameter.js
+++ b/lib/middleware/parameter.js
@@ -39,7 +39,7 @@ module.exports = async (ctx, next) => {
                 if (item.description) {
                     const $ = cheerio.load(item.description);
                     let baseUrl = item.link || ctx.state.data.link;
-                    if (!baseUrl.match(/^https?:\/\//)) {
+                    if (baseUrl && !baseUrl.match(/^https?:\/\//)) {
                         if (baseUrl.match(/^\/\//)) {
                             baseUrl = 'http:' + baseUrl;
                         } else {
@@ -53,7 +53,7 @@ module.exports = async (ctx, next) => {
                         const $ele = $(ele);
 
                         // absolute link
-                        if (ctx.state.data.link) {
+                        if (baseUrl) {
                             $ele.attr('href', new URL($ele.attr('href'), baseUrl).href);
                         }
                     });
@@ -73,7 +73,7 @@ module.exports = async (ctx, next) => {
                         }
 
                         // absolute link
-                        if (ctx.state.data.link) {
+                        if (baseUrl) {
                             $ele.attr('src', new URL($ele.attr('src'), baseUrl).href);
                         }