diff --git a/spec/fixtures/api/allocate-memory.html b/spec/fixtures/api/allocate-memory.html
deleted file mode 100644
index ce3140ab0cd..00000000000
--- a/spec/fixtures/api/allocate-memory.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-  </head>
-  <body>
-  <script>
-    window.bigBuffer = new Uint8Array(1024 * 1024 * 64)
-    window.bigBuffer.fill(5, 50, 1024 * 1024)
-   </script>
-  </body>
-</html>
diff --git a/spec/fixtures/api/execute-javascript.html b/spec/fixtures/api/execute-javascript.html
deleted file mode 100644
index e69de29bb2d..00000000000
diff --git a/spec/fixtures/api/service-worker/service-worker.html b/spec/fixtures/api/service-worker/service-worker.html
deleted file mode 100644
index 9b05c23b2ea..00000000000
--- a/spec/fixtures/api/service-worker/service-worker.html
+++ /dev/null
@@ -1,12 +0,0 @@
-<html>
-<body>
-  <script>
-      window.onerror = (err) => console.log(error)
-      
-      navigator.serviceWorker.register('service-worker.js', {
-        scope: './'
-      }).then(sw => {
-        console.log("registered")
-      }).catch(err => console.log(error))
-  </script>
-</body>
diff --git a/spec/fixtures/api/service-worker/service-worker.js b/spec/fixtures/api/service-worker/service-worker.js
deleted file mode 100644
index 8ae15aa448f..00000000000
--- a/spec/fixtures/api/service-worker/service-worker.js
+++ /dev/null
@@ -1,5 +0,0 @@
-console.log('Service worker startups.')
-
-self.addEventListener('install', (event) => {
-  console.log('Service worker installed.')
-})
diff --git a/spec/fixtures/pages/did-get-response-details.html b/spec/fixtures/pages/did-get-response-details.html
deleted file mode 100644
index c98458c8ffa..00000000000
--- a/spec/fixtures/pages/did-get-response-details.html
+++ /dev/null
@@ -1,5 +0,0 @@
-<html>
-<body>
-  <img src="../assets/logo.png" />
-</body>
-</html>
diff --git a/spec/fixtures/pages/process-exit.html b/spec/fixtures/pages/process-exit.html
deleted file mode 100644
index 012c9f85b15..00000000000
--- a/spec/fixtures/pages/process-exit.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<html>
-<body>
-<script type="text/javascript" charset="utf-8">
-process.on('exit', function() {
-  
-});
-</script>
-</body>
-</html>
diff --git a/spec/fixtures/pages/referrer.html b/spec/fixtures/pages/referrer.html
deleted file mode 100644
index 673b244ce16..00000000000
--- a/spec/fixtures/pages/referrer.html
+++ /dev/null
@@ -1,7 +0,0 @@
-<html>
-<body>
-<script type="text/javascript" charset="utf-8">
-  console.log(document.referrer);
-</script>
-</body>
-</html>
diff --git a/spec/fixtures/pages/webview-guest-resize.html b/spec/fixtures/pages/webview-guest-resize.html
deleted file mode 100644
index 57f636c42d0..00000000000
--- a/spec/fixtures/pages/webview-guest-resize.html
+++ /dev/null
@@ -1,23 +0,0 @@
-<html>
-<style>
-* {
-  width: 100%;
-  height: 100%;
-  margin: 0;
-}
-</style>
-<body>
-<webview id="webview" nodeintegration src="resize.html"/>
-</body>
-<script type="text/javascript" charset="utf-8">
-  const {ipcRenderer} = require('electron')
-
-  const webview = document.getElementById('webview')
-  webview.addEventListener('did-finish-load', () => {
-    ipcRenderer.send('webview-loaded')
-  }, {once: true})
-  webview.addEventListener('resize', event => {
-    ipcRenderer.send('webview-element-resize', event.newWidth, event.newHeight)
-  }, false)
-</script>
-</html>
diff --git a/spec/fixtures/pages/webview-no-node-integration-on-window.html b/spec/fixtures/pages/webview-no-node-integration-on-window.html
deleted file mode 100644
index 0af03cf1c49..00000000000
--- a/spec/fixtures/pages/webview-no-node-integration-on-window.html
+++ /dev/null
@@ -1,23 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <script>
-      document.addEventListener('DOMContentLoaded', function () {
-        var windowUrl = decodeURIComponent(window.location.search.substring(3))
-
-        var wv = new WebView()
-        wv.setAttribute('nodeintegration', 'yes')
-        wv.setAttribute('src', windowUrl)
-        wv.setAttribute('style', 'display:inline-block; width:200px; height:200px')
-
-        wv.addEventListener('console-message', function(e) {
-          window.answer(e.message)
-        })
-
-        document.body.appendChild(wv)
-      })
-    </script>
-  </head>
-  <body>
-  </body>
-</html>
diff --git a/spec/fixtures/pages/window-opener-no-web-view-tag.html b/spec/fixtures/pages/window-opener-no-web-view-tag.html
deleted file mode 100644
index 2596fc18e6e..00000000000
--- a/spec/fixtures/pages/window-opener-no-web-view-tag.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<html>
-<body>
-<script type="text/javascript" charset="utf-8">
-  var windowUrl = decodeURIComponent(window.location.search.substring(3))
-  var opened = window.open('file://' + windowUrl, '', 'webviewTag=yes,show=no')
-  window.addEventListener('message', function (event) {
-    try {
-      opened.close()
-    } finally {
-      window.opener.postMessage(event.data, '*')
-    }
-  })
-</script>
-</body>
-</html>
diff --git a/spec/fixtures/pages/window-opener-web-view.html b/spec/fixtures/pages/window-opener-web-view.html
deleted file mode 100644
index 48db5fc7964..00000000000
--- a/spec/fixtures/pages/window-opener-web-view.html
+++ /dev/null
@@ -1,9 +0,0 @@
-<html>
-<body>
-<script type="text/javascript" charset="utf-8">
-  window.onload = () => {
-    window.opener.postMessage({isWebViewUndefined: typeof WebView === 'undefined'}, '*')
-  }
-</script>
-</body>
-</html>
diff --git a/spec/fixtures/pages/window-print.html b/spec/fixtures/pages/window-print.html
deleted file mode 100644
index 442c0e92ad8..00000000000
--- a/spec/fixtures/pages/window-print.html
+++ /dev/null
@@ -1,8 +0,0 @@
-<html>
-<body>
-  <h1>Hello World!</h1>
-  <script>
-    window.print()
-  </script>
-</body>
-</html>
