From 41f0174362ad770963836ef797325ef41f773ee3 Mon Sep 17 00:00:00 2001
From: eight <eight04@gmail.com>
Date: Tue, 12 Sep 2017 02:46:37 +0800
Subject: [PATCH] Add: valid url

---
 js/usercss.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/js/usercss.js b/js/usercss.js
index ae5d864c..7440044a 100644
--- a/js/usercss.js
+++ b/js/usercss.js
@@ -263,12 +263,26 @@ var usercss = (function () {
     // validate version
     semverCompare(style.version, '0.0.0');
 
+    // validate URLs
+    validUrl(style.url);
+    validUrl(style.supportURL);
+
     // validate vars
     for (const key of Object.keys(style.vars)) {
       validVar(style.vars[key]);
     }
   }
 
+  function validUrl(url) {
+    if (!url) {
+      return;
+    }
+    url = new URL(url);
+    if (url.protocol !== 'http:' && url.protocol !== 'https:') {
+      throw new Error(`${url.protocol} is not a valid protocol`);
+    }
+  }
+
   function validVar(va, value = 'default') {
     if (va.type === 'select' && !va.select[va[value]]) {
       throw new Error(chrome.i18n.getMessage('styleMetaErrorSelectMissingKey', va[value]));