cache.patch

diff --git a/node_modules/gatsby/cache-dir/create-content-digest-browser-shim.js b/node_modules/gatsby/cache-dir/create-content-digest-browser-shim.js
index edc673f..cbd390c 100644
--- a/node_modules/gatsby/cache-dir/create-content-digest-browser-shim.js
+++ b/node_modules/gatsby/cache-dir/create-content-digest-browser-shim.js
@@ -1 +1 @@
-exports.createContentDigest = () => ``
+export const createContentDigest = () => ``
diff --git a/node_modules/gatsby/cache-dir/public-page-renderer.js b/node_modules/gatsby/cache-dir/public-page-renderer.js
index 6a91ada..e2ee03a 100644
--- a/node_modules/gatsby/cache-dir/public-page-renderer.js
+++ b/node_modules/gatsby/cache-dir/public-page-renderer.js
@@ -1,9 +1,11 @@
 const preferDefault = m => (m && m.default) || m
 
+let renderer = () => null;
+
 if (process.env.BUILD_STAGE === `develop`) {
-  module.exports = preferDefault(require(`./public-page-renderer-dev`))
+  renderer = preferDefault(require(`./public-page-renderer-dev`))
 } else if (process.env.BUILD_STAGE === `build-javascript`) {
-  module.exports = preferDefault(require(`./public-page-renderer-prod`))
-} else {
-  module.exports = () => null
+  renderer = preferDefault(require(`./public-page-renderer-prod`))
 }
+
+export default renderer;