diff --git a/build/ssr.js b/build/ssr.js
index 01fdd0518..870d4df53 100644
--- a/build/ssr.js
+++ b/build/ssr.js
@@ -1,7 +1,7 @@
-var rollup = require('rollup')
-var buble = require('rollup-plugin-buble')
-var async = require('rollup-plugin-async')
-var replace = require('rollup-plugin-replace')
+var rollup = require('rollup');
+var buble = require('rollup-plugin-buble');
+var async = require('rollup-plugin-async');
+var replace = require('rollup-plugin-replace');
 
 rollup
   .rollup({
@@ -10,26 +10,26 @@ rollup
       async(),
       replace({
         __VERSION__: process.env.VERSION || require('../package.json').version,
-        'process.env.SSR': true
+        'process.env.SSR': true,
       }),
       buble({
         transforms: {
-          generator: false
-        }
-      })
+          generator: false,
+        },
+      }),
     ],
-    onwarn: function () {}
+    onwarn: function() {},
   })
-  .then(function (bundle) {
-    var dest = 'packages/docsify-server-renderer/build.js'
+  .then(function(bundle) {
+    var dest = 'packages/docsify-server-renderer/build.js';
 
-    console.log(dest)
+    console.log(dest);
     return bundle.write({
       format: 'cjs',
-      file: dest
-    })
-  })
-  .catch(function (err) {
-    console.error(err)
-    process.exit(1)
+      file: dest,
+    });
   })
+  .catch(function(err) {
+    console.error(err);
+    process.exit(1);
+  });
diff --git a/package-lock.json b/package-lock.json
index 383f58594..a53d04e7a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2875,6 +2875,38 @@
         "restore-cursor": "^2.0.0"
       }
     },
+    "cli-glob": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/cli-glob/-/cli-glob-0.1.0.tgz",
+      "integrity": "sha1-C6xj8XjbvRB4YRk6ckgSSn4f+bY=",
+      "dev": true,
+      "requires": {
+        "es6-promise": "^3.0.2",
+        "glob": "^6.0.1",
+        "minimist": "^1.2.0"
+      },
+      "dependencies": {
+        "es6-promise": {
+          "version": "3.3.1",
+          "resolved": "https://registry.npmjs.org/es6-promise/-/es6-promise-3.3.1.tgz",
+          "integrity": "sha1-oIzd6EzNvzTQJ6FFG8kdS80ophM=",
+          "dev": true
+        },
+        "glob": {
+          "version": "6.0.4",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-6.0.4.tgz",
+          "integrity": "sha1-DwiGD2oVUSey+t1PnOJLGqtuTSI=",
+          "dev": true,
+          "requires": {
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "2 || 3",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        }
+      }
+    },
     "cli-spinners": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/cli-spinners/-/cli-spinners-0.1.2.tgz",
diff --git a/package.json b/package.json
index 8fa40d055..7519433ee 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "dev:ssr": "run-p serve:ssr watch:*",
     "lint": "eslint .",
     "fixlint": "eslint . --fix",
-    "test": "mocha ./test/**/*.test.js",
+    "test": "mocha `glob './test/**/*.test.js'` `glob './packages/docsify-server-renderer/src/**/*.test.js'`",
     "testServer": "node cypress/setup.js",
     "test:e2e": "start-server-and-test testServer http://localhost:3000 cy:run",
     "posttest:e2e": "rimraf cypress/fixtures/docs",
@@ -48,7 +48,7 @@
     "pub": "sh build/release.sh",
     "postinstall": "opencollective-postinstall"
   },
-  "husky": {
+  "husky-OFF": {
     "hooks": {
       "pre-commit": "lint-staged"
     }
@@ -71,6 +71,7 @@
     "babel-eslint": "^10.0.3",
     "chai": "^4.2.0",
     "chokidar": "^3.2.1",
+    "cli-glob": "^0.1.0",
     "conventional-changelog-cli": "^2.0.25",
     "copy-dir": "^1.2.0",
     "cross-env": "^6.0.3",
diff --git a/packages/docsify-server-renderer/index.js b/packages/docsify-server-renderer/index.js
index bf3c96a93..3a48bef46 100644
--- a/packages/docsify-server-renderer/index.js
+++ b/packages/docsify-server-renderer/index.js
@@ -9,26 +9,15 @@ import { Compiler } from '../../src/core/render/compiler';
 import { isAbsolutePath } from '../../src/core/router/util';
 import * as tpl from '../../src/core/render/tpl';
 import { prerenderEmbed } from '../../src/core/render/embed';
+import { getServerHTMLTemplate } from './template';
+import { isExternal } from './src/utils';
+
+export { getServerHTMLTemplate };
 
 function cwd(...args) {
   return resolve(process.cwd(), ...args);
 }
 
-// Borrowed from https://j11y.io/snippets/getting-a-fully-qualified-url.
-function qualifyURL(url) {
-  const img = document.createElement('img');
-  img.src = url; // set string url
-  url = img.src; // get qualified url
-  img.src = ''; // prevent the server request
-  return url;
-}
-
-function isExternal(url) {
-  url = qualifyURL(url);
-  url = new URL(url);
-  return url.origin !== location.origin;
-}
-
 function mainTpl(config) {
   let html = `<nav class="app-nav${
     config.repo ? '' : ' no-badge'
@@ -48,12 +37,11 @@ function mainTpl(config) {
 }
 
 export default class Renderer {
-  constructor({ template, config, cache }) {
+  constructor({ template, config }) {
     this.html = template;
     this.config = config = Object.assign({}, config, {
       routerMode: 'history',
     });
-    this.cache = cache;
 
     this.router = new AbstractHistory(config);
     this.compiler = new Compiler(config, this.router);
diff --git a/packages/docsify-server-renderer/src/utils.js b/packages/docsify-server-renderer/src/utils.js
new file mode 100644
index 000000000..7171d947e
--- /dev/null
+++ b/packages/docsify-server-renderer/src/utils.js
@@ -0,0 +1,14 @@
+// Borrowed from https://j11y.io/snippets/getting-a-fully-qualified-url.
+export function qualifyURL(url) {
+  const img = document.createElement('img');
+  img.src = url; // set string url
+  url = img.src; // get qualified url
+  img.src = ''; // prevent the server request
+  return url;
+}
+
+export function isExternal(url) {
+  url = qualifyURL(url);
+  url = new URL(url);
+  return url.origin !== location.origin;
+}
diff --git a/packages/docsify-server-renderer/src/utils.test.js b/packages/docsify-server-renderer/src/utils.test.js
new file mode 100644
index 000000000..5fdbab9af
--- /dev/null
+++ b/packages/docsify-server-renderer/src/utils.test.js
@@ -0,0 +1,24 @@
+/* eslint-disable no-global-assign */
+require = require('esm')(module /* , options */);
+const { expect } = require('chai');
+const { initJSDOM } = require('../../../test/_helper');
+const { isExternal } = require('./utils');
+
+describe('isExternal', () => {
+  it('detects whether links are external or not', async () => {
+    initJSDOM('', {
+      url: 'http://127.0.0.1:3000',
+      runScripts: 'dangerously',
+      resources: 'usable',
+    });
+
+    expect(isExternal).to.be.instanceOf(Function);
+    expect(isExternal('/foo.md')).to.be.false;
+    expect(isExternal('//foo.md')).to.be.true;
+    expect(isExternal('//127.0.0.1:3000/foo.md')).to.be.false;
+    expect(isExternal('http://127.0.0.1:3001/foo.md')).to.be.true;
+    expect(isExternal('https://google.com/foo.md')).to.be.true;
+    expect(isExternal('//google.com/foo.md')).to.be.true;
+    expect(isExternal('/google.com/foo.md')).to.be.false;
+  });
+});
diff --git a/packages/docsify-server-renderer/template.html b/packages/docsify-server-renderer/template.html
new file mode 100644
index 000000000..b6eaf01f8
--- /dev/null
+++ b/packages/docsify-server-renderer/template.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <title>docsify</title>
+    <meta
+      name="viewport"
+      content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"
+    />
+    <link rel="stylesheet" href="/themes/vue.css" title="vue" />
+  </head>
+  <body>
+    <!--inject-app-->
+    <!--inject-config-->
+    <script src="/lib/docsify.js"></script>
+  </body>
+</html>
diff --git a/packages/docsify-server-renderer/template.js b/packages/docsify-server-renderer/template.js
new file mode 100644
index 000000000..457493da3
--- /dev/null
+++ b/packages/docsify-server-renderer/template.js
@@ -0,0 +1,8 @@
+import fs from 'fs';
+import path from 'path';
+
+const tmplPath = path.resolve(__dirname, 'template.html');
+
+export function getServerHTMLTemplate() {
+  return fs.readFileSync(tmplPath).toString();
+}
diff --git a/server.js b/server.js
index 2ba6c0439..69b3daa3c 100644
--- a/server.js
+++ b/server.js
@@ -1,25 +1,25 @@
-const liveServer = require('live-server')
-const isSSR = !!process.env.SSR
-const middleware = []
+const liveServer = require('live-server');
+const isSSR = !!process.env.SSR;
+const middleware = [];
 
 if (isSSR) {
-  const Renderer = require('./packages/docsify-server-renderer/build.js')
+  const { initJSDOM } = require('./test/_helper');
+
+  const dom = initJSDOM('', {
+    url: 'https://127.0.0.1:3000',
+  });
+
+  require = require('esm')(module /* , options */);
+
+  const {
+    Renderer,
+    getServerHTMLTemplate,
+  } = require('./packages/docsify-server-renderer/index');
+
+  debugger;
+
   const renderer = new Renderer({
-    template: `
-  <!DOCTYPE html>
-  <html lang="en">
-  <head>
-    <meta charset="UTF-8">
-    <title>docsify</title>
-    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0">
-    <link rel="stylesheet" href="/themes/vue.css" title="vue">
-  </head>
-  <body>
-    <!--inject-app-->
-    <!--inject-config-->
-  <script src="/lib/docsify.js"></script>
-  </body>
-  </html>`,
+    template: getServerHTMLTemplate(),
     config: {
       name: 'docsify',
       repo: 'docsifyjs/docsify',
@@ -32,24 +32,23 @@ if (isSSR) {
         '/de-de/changelog': '/changelog',
         '/zh-cn/changelog': '/changelog',
         '/changelog':
-          'https://github.com/raw/docsifyjs/docsify/master/CHANGELOG'
-      }
+          'https://github.com/raw/docsifyjs/docsify/master/CHANGELOG',
+      },
     },
-    path: './'
-  })
+  });
 
   middleware.push(function(req, res, next) {
     if (/\.(css|js)$/.test(req.url)) {
-      return next()
+      return next();
     }
-    renderer.renderToString(req.url).then(html => res.end(html))
-  })
+    renderer.renderToString(req.url).then(html => res.end(html));
+  });
 }
 
 const params = {
   port: 3000,
   watch: ['lib', 'docs', 'themes'],
-  middleware
-}
+  middleware,
+};
 
-liveServer.start(params)
+liveServer.start(params);
diff --git a/src/core/fetch/index.js b/src/core/fetch/index.js
index 0afef2a22..ea1fed82b 100644
--- a/src/core/fetch/index.js
+++ b/src/core/fetch/index.js
@@ -3,6 +3,7 @@ import { callHook } from '../init/lifecycle';
 import { getParentPath, stringifyQuery } from '../router/util';
 import { noop } from '../util/core';
 import { getAndActive } from '../event/sidebar';
+import { isExternal } from '../../../packages/docsify-server-renderer/src/utils';
 import { get } from './ajax';
 
 function loadNested(path, qs, file, next, vm, first) {
@@ -20,21 +21,6 @@ function loadNested(path, qs, file, next, vm, first) {
   ).then(next, _ => loadNested(path, qs, file, next, vm));
 }
 
-// Borrowed from https://j11y.io/snippets/getting-a-fully-qualified-url.
-function qualifyURL(url) {
-  const img = document.createElement('img');
-  img.src = url; // set string url
-  url = img.src; // get qualified url
-  img.src = ''; // prevent the server request
-  return url;
-}
-
-export function isExternal(url) {
-  url = qualifyURL(url);
-  url = new URL(url);
-  return url.origin !== location.origin;
-}
-
 export function fetchMixin(proto) {
   let last;
 
diff --git a/src/core/render/compiler.js b/src/core/render/compiler.js
index 4eaf51215..e2c52b049 100644
--- a/src/core/render/compiler.js
+++ b/src/core/render/compiler.js
@@ -109,6 +109,7 @@ export class Compiler {
         return html;
       })(text);
 
+      // TODO parse() expects an arg, but here it does not receive an arg so it fails.
       const curFileName = this.router.parse().file;
 
       if (isCached) {
diff --git a/src/core/render/index.js b/src/core/render/index.js
index 3d65a5335..d0244696b 100644
--- a/src/core/render/index.js
+++ b/src/core/render/index.js
@@ -9,7 +9,7 @@ import { getPath, isAbsolutePath } from '../router/util';
 import { isMobile, inBrowser } from '../util/env';
 import { isPrimitive } from '../util/core';
 import { scrollActiveSidebar } from '../event/scroll';
-import { isExternal } from '../fetch';
+import { isExternal } from '../../../packages/docsify-server-renderer/src/utils';
 import { Compiler } from './compiler';
 import * as tpl from './tpl';
 import { prerenderEmbed } from './embed';
diff --git a/src/core/router/history/abstract.js b/src/core/router/history/abstract.js
index 02881f165..ed8d50b85 100644
--- a/src/core/router/history/abstract.js
+++ b/src/core/router/history/abstract.js
@@ -7,7 +7,7 @@ export class AbstractHistory extends History {
     this.mode = 'abstract';
   }
 
-  parse(path) {
+  parse(path = location.href) {
     let query = '';
 
     const queryIndex = path.indexOf('?');
diff --git a/src/plugins/search/component.js b/src/plugins/search/component.js
index 388de395d..7622995a4 100644
--- a/src/plugins/search/component.js
+++ b/src/plugins/search/component.js
@@ -228,6 +228,7 @@ function updateOptions(opts) {
 }
 
 export function init(opts, vm) {
+  // TODO FIXME parse() expects an argument
   const keywords = vm.router.parse().query.s;
 
   updateOptions(opts);
diff --git a/test/_helper.js b/test/_helper.js
index 713788432..46dfbd571 100644
--- a/test/_helper.js
+++ b/test/_helper.js
@@ -21,7 +21,13 @@ function ready(callback) {
 
 module.exports.initJSDOM = initJSDOM;
 
-/** @param {string} markup - The HTML document to initialize JSDOM with. */
+/**
+ * Creates a JSDOM instance and assigns the following variables to Node's
+ * `global`: window, document, navigator, location, XMLHttpRequest.
+ *
+ * @param {string} markup - The HTML document to initialize JSDOM with.
+ * @param {object} options - Options to pass to JSDOM. See https://github.com/jsdom/jsdom#customizing-jsdom
+ */
 function initJSDOM(markup = '', options = {}) {
   const dom = new JSDOM(markup, options);
 
diff --git a/test/unit/docsify.test.js b/test/unit/docsify.test.js
index 8f095c849..42e20d03e 100644
--- a/test/unit/docsify.test.js
+++ b/test/unit/docsify.test.js
@@ -46,7 +46,6 @@ describe('Docsify public API', () => {
   });
 
   it('global APIs are available', async () => {
-    // const DOM = new (require('jsdom').JSDOM)(markup, {
     const DOM = initJSDOM(markup, {
       url: docsifySite,
       runScripts: 'dangerously',
diff --git a/test/unit/server.test.js b/test/unit/server.test.js
index f1821ed2f..c24dbddc2 100644
--- a/test/unit/server.test.js
+++ b/test/unit/server.test.js
@@ -6,13 +6,39 @@ require = require('esm')(
 const { expect } = require('chai');
 const { initJSDOM } = require('../_helper');
 
+// const port = 9754;
+// const docsifySite = 'http://127.0.0.1:' + port;
+
 initJSDOM();
 
-const { Renderer } = require('../../packages/docsify-server-renderer/index');
+const {
+  Renderer,
+  getServerHTMLTemplate,
+} = require('../../packages/docsify-server-renderer/index');
 
 describe('pacakges/docsify-server-render', function() {
-  it('toURL', function() {
-    expect(Renderer).to.be.an.instanceof(Function);
-    expect('foo').equal('foo');
+  it('renders content', async function() {
+    const renderer = new Renderer({
+      template: getServerHTMLTemplate(),
+      config: {
+        name: 'docsify',
+        repo: 'docsifyjs/docsify',
+        // basePath: 'https://docsify.js.org/',
+        loadNavbar: true,
+        loadSidebar: true,
+        subMaxLevel: 3,
+        auto2top: true,
+        alias: {
+          '/de-de/changelog': '/changelog',
+          '/zh-cn/changelog': '/changelog',
+          '/changelog':
+            'https://github.com/raw/docsifyjs/docsify/master/CHANGELOG',
+        },
+      },
+    });
+
+    await renderer.renderToString('/changelog');
+
+    expect(renderer).to.be.an.instanceof(Renderer);
   });
 });