diff --git a/lib/plugins/helper/open_graph.js b/lib/plugins/helper/open_graph.js
index 0af4ef2c8b..8fd03f8394 100644
--- a/lib/plugins/helper/open_graph.js
+++ b/lib/plugins/helper/open_graph.js
@@ -2,24 +2,16 @@
 
 const urlFn = require('url');
 const moment = require('moment');
-const { escapeHTML, htmlTag, stripHTML } = require('hexo-util');
-
-function meta(name, content, escape) {
-  if (escape !== false && typeof content === 'string') {
-    content = escapeHTML(content);
-  }
+const { encodeURL, htmlTag, stripHTML } = require('hexo-util');
 
+function meta(name, content) {
   return `${htmlTag('meta', {
     name,
     content
   })}\n`;
 }
 
-function og(name, content, escape) {
-  if (escape !== false && typeof content === 'string') {
-    content = escapeHTML(content);
-  }
-
+function og(name, content) {
   return `${htmlTag('meta', {
     property: name,
     content
@@ -70,7 +62,7 @@ function openGraphHelper(options = {}) {
   let result = '';
 
   if (description) {
-    result += meta('description', description, false);
+    result += meta('description', description);
   }
 
   if (keywords) {
@@ -86,19 +78,21 @@ function openGraphHelper(options = {}) {
   result += og('og:type', type);
   result += og('og:title', title);
 
-  if (config.pretty_urls.trailing_index === false) {
-    url = url.replace(/index\.html$/, '');
+  if (url) {
+    if (config.pretty_urls.trailing_index === false) {
+      url = url.replace(/index\.html$/, '');
+    }
+    url = encodeURL(url);
   }
-
-  result += og('og:url', url, false);
+  result += og('og:url', url);
 
   result += og('og:site_name', siteName);
   if (description) {
-    result += og('og:description', description, false);
+    result += og('og:description', description);
   }
 
   if (language) {
-    result += og('og:locale', language, false);
+    result += og('og:locale', language);
   }
 
   images = images.map(path => {
@@ -112,7 +106,7 @@ function openGraphHelper(options = {}) {
   });
 
   images.forEach(path => {
-    result += og('og:image', path, false);
+    result += og('og:image', path);
   });
 
   if (updated) {
@@ -124,7 +118,7 @@ function openGraphHelper(options = {}) {
   result += meta('twitter:card', twitterCard);
 
   if (images.length) {
-    result += meta('twitter:image', images[0], false);
+    result += meta('twitter:image', images[0]);
   }
 
   if (options.twitter_id) {
@@ -135,7 +129,7 @@ function openGraphHelper(options = {}) {
   }
 
   if (options.twitter_site) {
-    result += meta('twitter:site', options.twitter_site, false);
+    result += meta('twitter:site', options.twitter_site);
   }
 
   if (options.google_plus) {
diff --git a/package.json b/package.json
index 962c8e04fb..298392a387 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "hexo-fs": "^2.0.0",
     "hexo-i18n": "^1.0.0",
     "hexo-log": "^1.0.0",
-    "hexo-util": "^1.3.1",
+    "hexo-util": "^1.4.0",
     "js-yaml": "^3.12.0",
     "lodash": "^4.17.11",
     "micromatch": "^4.0.2",
diff --git a/test/scripts/helpers/open_graph.js b/test/scripts/helpers/open_graph.js
index 648046512e..d9c484a712 100644
--- a/test/scripts/helpers/open_graph.js
+++ b/test/scripts/helpers/open_graph.js
@@ -129,6 +129,19 @@ describe('open_graph', () => {
     hexo.config.pretty_urls.trailing_index = true;
   });
 
+  it('url - IDN', () => {
+    const ctx = {
+      page: {},
+      config: hexo.config,
+      is_post: isPost,
+      url: 'https://foô.com/bár'
+    };
+
+    const result = openGraph.call(ctx);
+
+    result.should.contain(meta({property: 'og:url', content: 'https://xn--fo-9ja.com/b%C3%A1r'}));
+  });
+
   it('images - content', () => {
     const result = openGraph.call({
       page: {
diff --git a/test/scripts/tags/asset_img.js b/test/scripts/tags/asset_img.js
index 0adc7e60cb..d8f0709c09 100644
--- a/test/scripts/tags/asset_img.js
+++ b/test/scripts/tags/asset_img.js
@@ -50,7 +50,7 @@ describe('asset_img', () => {
   });
 
   it('default', () => {
-    assetImg('bar title').should.eql('<img src="/foo/bar" class="" title="title">');
+    assetImg('bar "a title"').should.eql('<img src="/foo/bar" class="" title="a title">');
   });
 
   it('with space', () => {
@@ -60,13 +60,13 @@ describe('asset_img', () => {
   });
 
   it('with alt and title', () => {
-    assetImgTag.call(post, ['bar', '"title"', '"alt"'])
-      .should.eql('<img src="/foo/bar" class="" title="title" alt="alt">');
+    assetImgTag.call(post, ['bar', '"a title"', '"an alt"'])
+      .should.eql('<img src="/foo/bar" class="" title="a title" alt="an alt">');
   });
 
   it('with width height alt and title', () => {
-    assetImgTag.call(post, ['bar', '100', '200', '"title"', '"alt"'])
-      .should.eql('<img src="/foo/bar" class="" width="100" height="200" title="title" alt="alt">');
+    assetImgTag.call(post, ['bar', '100', '200', '"a title"', '"an alt"'])
+      .should.eql('<img src="/foo/bar" class="" width="100" height="200" title="a title" alt="an alt">');
   });
 
   it('no slug', () => {