From 116ae144875e1ac86240ff956614c218a340e0c0 Mon Sep 17 00:00:00 2001
From: Hans van Zijst <hans@procolix.com>
Date: Wed, 13 Nov 2024 18:02:38 +0100
Subject: [PATCH] Added headers for proxy to enable Element to accept the
 .well-known stuff.

---
 matrix/nginx/README.md   | 7 +++++++
 matrix/synapse/README.md | 1 +
 2 files changed, 8 insertions(+)

diff --git a/matrix/nginx/README.md b/matrix/nginx/README.md
index 10a30b4..4c11fb2 100644
--- a/matrix/nginx/README.md
+++ b/matrix/nginx/README.md
@@ -66,6 +66,10 @@ server {
           "org.matrix.msc3575.proxy": {"url": "https://vm02199.procolix.com"}
        }';
        default_type application/json;
+
+       add_header 'Access-Control-Allow-Origin' '*';
+       add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS';
+       add_header 'Access-Control-Allow-Headers' 'X-Requested-With, Content-Type, Authorization';
     }
 
     location /.well-known/matrix/server {
@@ -92,6 +96,9 @@ http is forwarded to https.
 Be sure to substitute the correct values for `server_name`, `base_url` and the
 certificate files.
 
+The three `add_header` lines are absolutely necessary, but probably need some
+tweaking. This is a TODO for this page.
+
 For the actual proxy in front of Synapse, this is what you need:
 
 ```
diff --git a/matrix/synapse/README.md b/matrix/synapse/README.md
index e227781..acda812 100644
--- a/matrix/synapse/README.md
+++ b/matrix/synapse/README.md
@@ -171,3 +171,4 @@ Pointing clients to the correct server needs this at
 Very important: both names (example.com and matrix.example.com) must be A
 and/or AAAA records in DNS, not CNAME.
 
+See [nginx](../nginx) for details about how to publish this data.