Always send an error to client if there is. (vercel#1800)

arunoda · web-flow · commit 84d00ad14dc6 · 2017-04-25T09:45:58.000+05:30
In the production, we need to send a dummy error.
diff --git a/server/render.js b/server/render.js
@@ -97,7 +97,7 @@ async function doRender (req, res, pathname, query, {
       buildId,
       buildStats,
       assetPrefix,
-      err: (err && dev) ? errorToJSON(err) : null
+      err: (err) ? serializeError(dev, err) : null
     },
     dev,
     staticMarkup,
@@ -191,6 +191,14 @@ function errorToJSON (err) {
   return json
 }
 
+function serializeError (dev, err) {
+  if (dev) {
+    return errorToJSON(err)
+  }
+
+  return { message: '500 - Internal Server Error.' }
+}
+
 export function serveStatic (req, res, path) {
   return new Promise((resolve, reject) => {
     send(req, path)
