diff --git a/.github/label-commenter-config.yml b/.github/label-commenter-config.yml
index 38c3309..a291861 100644
--- a/.github/label-commenter-config.yml
+++ b/.github/label-commenter-config.yml
@@ -6,7 +6,7 @@ labels:
       issue:
         body: |
           This issue has been closed because it does not meet our Issue template.
-          Please read our [guidelines for contributing](https://github.com/next-theme/hexo-theme-next/blob/master/.github/CONTRIBUTING.md#how-can-i-contribute)."
+          Please read our [guidelines for contributing](https://github.com/next-theme/hexo-theme-next/blob/master/.github/CONTRIBUTING.md#how-can-i-contribute).
         action: close
   - name: Need More Info
     labeled:
diff --git a/scripts/filters/post.js b/scripts/filters/post.js
index 23c8452..f1ea4cb 100644
--- a/scripts/filters/post.js
+++ b/scripts/filters/post.js
@@ -2,6 +2,8 @@
 
 'use strict';
 
+const { parse } = require('url');
+
 hexo.extend.filter.register('after_post_render', data => {
   const { config } = hexo;
   const theme = hexo.theme.config;
@@ -10,14 +12,13 @@ hexo.extend.filter.register('after_post_render', data => {
     data.content = data.content.replace(/(<img[^>]*) src=/img, '$1 data-src=');
   }
   if (theme.exturl) {
-    const url = require('url');
-    const siteHost = url.parse(config.url).hostname || config.url;
+    const siteHost = parse(config.url).hostname || config.url;
     data.content = data.content.replace(/<a[^>]* href="([^"]+)"[^>]*>([^<]+)<\/a>/img, (match, href, html) => {
       // Exit if the href attribute doesn't exists.
       if (!href) return match;
 
       // Exit if the url has same host with `config.url`, which means it's an internal link.
-      const link = url.parse(href);
+      const link = parse(href);
       if (!link.protocol || link.hostname === siteHost) return match;
 
       return `<span class="exturl" data-url="${Buffer.from(href).toString('base64')}">${html}<i class="fa fa-external-link-alt"></i></span>`;
diff --git a/scripts/helpers/next-config.js b/scripts/helpers/next-config.js
index 5fe3a36..cef8bea 100644
--- a/scripts/helpers/next-config.js
+++ b/scripts/helpers/next-config.js
@@ -2,7 +2,7 @@
 
 'use strict';
 
-const url = require('url');
+const { parse } = require('url');
 
 /**
  * Export theme config to js
@@ -11,7 +11,7 @@ hexo.extend.helper.register('next_config', function() {
   const { config, theme, next_version } = this;
   config.algolia = config.algolia || {};
   const exportConfig = {
-    hostname  : url.parse(config.url).hostname || config.url,
+    hostname  : parse(config.url).hostname || config.url,
     root      : config.root,
     scheme    : theme.scheme,
     version   : next_version,
diff --git a/scripts/helpers/next-url.js b/scripts/helpers/next-url.js
index de12fe0..7212b44 100644
--- a/scripts/helpers/next-url.js
+++ b/scripts/helpers/next-url.js
@@ -3,12 +3,12 @@
 'use strict';
 
 const { htmlTag } = require('hexo-util');
-const url = require('url');
+const { parse } = require('url');
 
 hexo.extend.helper.register('next_url', function(path, text, options = {}) {
   const { config } = this;
-  const data = url.parse(path);
-  const siteHost = url.parse(config.url).hostname || config.url;
+  const data = parse(path);
+  const siteHost = parse(config.url).hostname || config.url;
 
   const theme = hexo.theme.config;
   let exturl = '';
diff --git a/source/js/schemes/muse.js b/source/js/schemes/muse.js
index 2e9dec7..14f811e 100644
--- a/source/js/schemes/muse.js
+++ b/source/js/schemes/muse.js
@@ -22,7 +22,7 @@ document.addEventListener('DOMContentLoaded', () => {
     mouseupHandler: function(event) {
       const deltaX = event.pageX - mousePos.X;
       const deltaY = event.pageY - mousePos.Y;
-      const clickingBlankPart = Math.sqrt((deltaX * deltaX) + (deltaY * deltaY)) < 20 && event.target.matches('.main');
+      const clickingBlankPart = Math.hypot(deltaX, deltaY) < 20 && event.target.matches('.main');
       // Fancybox has z-index property, but medium-zoom does not, so the sidebar will overlay the zoomed image.
       if (clickingBlankPart || event.target.matches('img.medium-zoom-image')) {
         this.hideSidebar();