feat: load deps needed for sdk in ssr

gatsby-ssr.js

@@ -4,4 +4,36 @@
  * See: https://www.gatsbyjs.org/docs/ssr-apis/
  */
 
-// You can delete this file if you're not using it
+// This is needed to ensure the NR1 SDK can load properly
+const React = require('react');
+
+exports.onPreRenderHTML = ({ getHeadComponents, replaceHeadComponents }) => {
+  replaceHeadComponents([
+    ...getHeadComponents(),
+    <script
+      key="react"
+      crossOrigin="anonymous"
+      src="//nr1.nr-assets.net/lib/react/16.6.3/react.development.js"
+    />,
+    <script
+      key="react-dom"
+      crossOrigin="anonymous"
+      src="//nr1.nr-assets.net/lib/react/16.6.3/react-dom.development.js"
+    />,
+    <script
+      key="react-router"
+      crossOrigin="anonymous"
+      src="//nr1.nr-assets.net/lib/react-router/4.2.0/react-router.js"
+    />,
+    <script
+      key="react-router-dom"
+      crossOrigin="anonymous"
+      src="//nr1.nr-assets.net/lib/react-router-dom/4.2.2/react-router-dom.js"
+    />,
+    <script
+      key="d3"
+      crossOrigin="anonymous"
+      src="//nr1.nr-assets.net/lib/d3/3.5.17/d3.js"
+    />,
+  ]);
+};