Add Content-Location header to Access-Control-Expose-Headers in CORS proxy

Author: csarven

lib/handlers/cors-proxy.js

@@ -11,7 +11,7 @@ const validUrl = require('valid-url')
 
 const CORS_SETTINGS = {
   methods: 'GET',
-  exposedHeaders: 'Authorization, User, Location, Link, Vary, Last-Modified, Content-Length',
+  exposedHeaders: 'Authorization, User, Location, Link, Vary, Last-Modified, Content-Length, Content-Location',
   maxAge: 1728000,
   origin: true
 }