1 files changed, 25 insertions, 0 deletions
diff --git a/src/Cors.hs b/src/Cors.hs
new file mode 100644
index 0000000..ccfcec5
--- /dev/null
+++ b/src/Cors.hs
@@ -0,0 +1,25 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+module Cors (corsMiddleware) where
+
+import Network.Wai.Middleware.Cors
+    ( simpleCorsResourcePolicy
+    , cors
+    , CorsResourcePolicy(..)
+    )
+import Network.Wai (Middleware)
+import Data.ByteString (ByteString)
+
+matrixCorsPolicy :: CorsResourcePolicy
+matrixCorsPolicy = simpleCorsResourcePolicy
+  { corsOrigins = Just ([], True)  -- Access-Control-Allow-Origin: *
+  , corsMethods = [ "GET", "POST", "PUT", "DELETE", "OPTIONS" ]
+  , corsRequestHeaders =
+      [ "X-Requested-With"
+      , "Content-Type"
+      , "Authorization"
+      ]
+  }
+
+corsMiddleware :: Middleware
+corsMiddleware = cors (const $ Just matrixCorsPolicy)