diff --git a/src/static/__tests__/index.js b/src/static/__tests__/index.js
index 414e4e6e1..19a31b7f4 100644
--- a/src/static/__tests__/index.js
+++ b/src/static/__tests__/index.js
@@ -25,9 +25,6 @@ test("don't break if there is nothing to transform", async (t) => {
   .then((files) => {
     t.is(files.length, 0)
   })
-  .catch((error) => {
-    t.fail(error)
-  })
 })
 
 test("writeAllHTMLFiles", (t) => {
@@ -48,14 +45,11 @@ test("writeAllHTMLFiles", (t) => {
       if (!expectedHTML[filename]) {
         throw new Error(filename + " is missing in expectedHTML results")
       }
-      t.deepEqual(
+      t.is(
         beautifyHTML(html),
         expectedHTML[filename](),
       )
     },
     forgetPageData: () => {},
   }, true)
-  .catch((error) => {
-    t.fail(error)
-  })
 })
diff --git a/src/static/__tests__/results/destination/index.html.js b/src/static/__tests__/results/destination/index.html.js
index 7eb8f3faa..1f4b63c05 100644
--- a/src/static/__tests__/results/destination/index.html.js
+++ b/src/static/__tests__/results/destination/index.html.js
@@ -1,3 +1,4 @@
+/* eslint-disable max-len */
 import htmlMetas from "../../../../_utils/html-metas"
 
 export default () => (
@@ -13,7 +14,7 @@ export default () => (
 
 <body>
   <div id="phenomic">
-    <p>TestContainer</p>
+    <p data-reactroot="" data-reactid="1" data-react-checksum="305402615">TestContainer</p>
   </div>
   <script>
     window.__COLLECTION__ = [{
diff --git a/src/static/__tests__/results/destination/test-url/index.html.js b/src/static/__tests__/results/destination/test-url/index.html.js
index 4b5c27117..2869531c5 100644
--- a/src/static/__tests__/results/destination/test-url/index.html.js
+++ b/src/static/__tests__/results/destination/test-url/index.html.js
@@ -1,3 +1,4 @@
+/* eslint-disable max-len */
 import htmlMetas from "../../../../../_utils/html-metas"
 
 export default () => (
@@ -13,7 +14,7 @@ export default () => (
 
 <body>
   <div id="phenomic">
-    <p>TestContainer</p>
+    <p data-reactroot="" data-reactid="1" data-react-checksum="305402615">TestContainer</p>
   </div>
   <script>
     window.__COLLECTION__ = [{
diff --git a/src/static/__tests__/results/destination/test/index.html.js b/src/static/__tests__/results/destination/test/index.html.js
index 065de6646..5a349251d 100644
--- a/src/static/__tests__/results/destination/test/index.html.js
+++ b/src/static/__tests__/results/destination/test/index.html.js
@@ -1,3 +1,4 @@
+/* eslint-disable max-len */
 import htmlMetas from "../../../../../_utils/html-metas"
 
 export default () => (
@@ -13,7 +14,7 @@ export default () => (
 
 <body>
   <div id="phenomic">
-    <p>ReactTestContainer</p>
+    <p data-reactroot="" data-reactid="1" data-react-checksum="2007307494">ReactTestContainer</p>
   </div>
   <script>
     window.__COLLECTION__ = [{
diff --git a/src/static/__tests__/url-as-html.js b/src/static/__tests__/url-as-html.js
index a041a5bf2..48ebc0f5e 100644
--- a/src/static/__tests__/url-as-html.js
+++ b/src/static/__tests__/url-as-html.js
@@ -1,3 +1,5 @@
+/* eslint-disable max-len */
+
 import url from "url"
 
 import test from "jest-ava-api"
@@ -23,7 +25,6 @@ test("url as html", async (t) => {
       clientScripts: true,
     },
     undefined, // Html
-    true
   )
 
   const expectedHTML = (
@@ -37,7 +38,7 @@ test("url as html", async (t) => {
 
 <body>
   <div id="phenomic">
-    <p>TestContainer</p>
+    <p data-reactroot="" data-reactid="1" data-react-checksum="305402615">TestContainer</p>
   </div>
   <script>
     window.__COLLECTION__ = [{
@@ -76,7 +77,6 @@ test("url as html without JS", async (t) => {
       clientScripts: false,
     },
     undefined, // Html
-    true
   )
 
   const expectedHTML = (
@@ -117,7 +117,6 @@ test("baseUrl with offline support", async (t) => {
       clientScripts: true,
     },
     undefined, // Html
-    true
   )
 
   const expectedHTML = (
@@ -131,7 +130,7 @@ test("baseUrl with offline support", async (t) => {
 
 <body>
   <div id="phenomic">
-    <p>TestContainer</p>
+    <p data-reactroot="" data-reactid="1" data-react-checksum="305402615">TestContainer</p>
   </div>
   <script>
     window.__COLLECTION__ = [{
@@ -170,7 +169,6 @@ test("custom script tags", async (t) => {
       clientScripts: true,
     },
     undefined, // Html
-    true
   )
 
   const expectedHTML = (
@@ -184,8 +182,9 @@ test("custom script tags", async (t) => {
 
 <body>
   <div id="phenomic">
-    <div>
-      <p>TestContainer</p>
+    <div data-reactroot="" data-reactid="1" data-react-checksum="1089807005">
+      <!-- react-empty: 2 -->
+      <p data-reactid="3">TestContainer</p>
     </div>
   </div>
   <script>
diff --git a/src/static/url-as-html.js b/src/static/url-as-html.js
index 9f9b43610..9d13d4748 100644
--- a/src/static/url-as-html.js
+++ b/src/static/url-as-html.js
@@ -16,8 +16,7 @@ import minifyCollection from "../loader/minify"
 export default function(
   url: string,
   options: PhenomicStaticConfig,
-  Html: Function = DefaultHtml,
-  testing?: boolean
+  Html: Function = DefaultHtml
 ): Promise<string> {
 
   const {
@@ -30,9 +29,9 @@ export default function(
   } = options
 
   const render = ReactDOMserver[
-    !testing
-    ? "renderToString"
-    : "renderToStaticMarkup"
+    (!options.clientScripts)
+    ? "renderToStaticMarkup"
+    : "renderToString"
   ]
 
   return new Promise((resolve, reject) => {
