Merge pull request #740 from solid/vary-accept

Add Vary: Accept header

Author: kjetilk

lib/create-app.js

@@ -120,8 +120,11 @@ function initHeaders (app) {
   app.use(corsSettings)
 
   app.use((req, res, next) => {
-    // Set X-Powered-By
     res.set('X-Powered-By', 'solid-server')
+
+    // Cors lib adds Vary: Origin automatically, but inreliably
+    res.set('Vary', 'Accept, Authorization, Origin')
+
     // Set default Allow methods
     res.set('Allow', 'OPTIONS, HEAD, GET, PATCH, POST, PUT, DELETE')
     next()