diff --git a/lib/v2/javdb/utils.js b/lib/v2/javdb/utils.js
index e6dd932762..c44c6bfb20 100644
--- a/lib/v2/javdb/utils.js
+++ b/lib/v2/javdb/utils.js
@@ -7,7 +7,8 @@ const allowDomain = ['javdb.com', 'javdb36.com', 'javdb007.com'];
 module.exports = {
     ProcessItems: async (ctx, currentUrl, title) => {
         const domain = ctx.query.domain ?? 'javdb.com';
-        if (!config.feature.allow_user_supply_unsafe_domain && !allowDomain.includes(new URL(`https://${domain}/`).hostname)) {
+        const url = new URL(currentUrl, `https://${domain}`);
+        if (!config.feature.allow_user_supply_unsafe_domain && !allowDomain.includes(url.hostname)) {
             ctx.throw(403, `This RSS is disabled unless 'ALLOW_USER_SUPPLY_UNSAFE_DOMAIN' is set to 'true'.`);
         }
 
@@ -15,7 +16,7 @@ module.exports = {
 
         const response = await got({
             method: 'get',
-            url: `${rootUrl}${currentUrl}`,
+            url: url.href,
         });
 
         const $ = cheerio.load(response.data);
@@ -68,11 +69,11 @@ module.exports = {
         );
 
         const htmlTitle = $('title').text();
-        const subject = htmlTitle.indexOf('|') === -1 ? '' : htmlTitle.split('|')[0];
+        const subject = htmlTitle.includes('|') ? htmlTitle.split('|')[0] : '';
 
         return {
             title: subject === '' ? title : `${subject} - ${title}`,
-            link: `${rootUrl}${currentUrl}`,
+            link: url.href,
             item: items,
         };
     },