From 294dcb36485eb8119d09b6b36cc30ae7d7a39545 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adam=20Zieli=C5=84ski?= <adam@adamziel.com>
Date: Fri, 14 Oct 2022 12:11:21 -1000
Subject: [PATCH] Serve the Origin-Agent-Cluster: ?1 header through .htaccess
 instead of a iframe-worker.php file

---
 build.js                   | 5 ++---
 dist-web/.htaccess         | 6 +++++-
 dist-web/iframe-worker.php | 7 -------
 liveServer.js              | 8 +++++++-
 4 files changed, 14 insertions(+), 12 deletions(-)
 delete mode 100644 dist-web/iframe-worker.php

diff --git a/build.js b/build.js
index 9c85d0b0..37b6fc54 100644
--- a/build.js
+++ b/build.js
@@ -36,12 +36,11 @@ if (argv.platform === "browser") {
     let wasmWorkerUrl;
     if (wasmWorkerBackend === 'iframe') {
         const wasmWorkerOrigin = process.env.WASM_WORKER_ORIGIN || 'http://127.0.0.1:8778';
-        const wasmWorkerFilename = process.env.WASM_WORKER_FILENAME || 'iframe-worker.html';
-        wasmWorkerUrl = `${wasmWorkerOrigin}/${wasmWorkerFilename}`;
+        wasmWorkerUrl = `${wasmWorkerOrigin}/iframe-worker.html`;
     } else {
         wasmWorkerUrl = `${serviceWorkerOrigin}/wasm-worker.js`;
     }
-    
+
     options = {
         ...defaults,
         entryPoints: {
diff --git a/dist-web/.htaccess b/dist-web/.htaccess
index aa15d6f4..cbcb6e71 100644
--- a/dist-web/.htaccess
+++ b/dist-web/.htaccess
@@ -1,4 +1,8 @@
 AddType application/wasm .wasm
 
 RewriteEngine on
-RewriteRule ^scope:.*?/(.*)$ $1 
+RewriteRule ^scope:.*?/(.*)$ $1
+
+<FilesMatch "iframe-worker.html$">
+  Header set Origin-Agent-Cluster: ?1
+</FilesMatch>
diff --git a/dist-web/iframe-worker.php b/dist-web/iframe-worker.php
deleted file mode 100644
index 0c16c419..00000000
--- a/dist-web/iframe-worker.php
+++ /dev/null
@@ -1,7 +0,0 @@
-<?php
-
-// The Origin-Agent-Cluster hints the browser to allocate a separate
-// process for this document. It makes WordPress noticeably faster.
-header('Origin-Agent-Cluster: ?1');
-
-echo file_get_contents('iframe-worker.html');
diff --git a/liveServer.js b/liveServer.js
index 8c613bb4..15f5c501 100644
--- a/liveServer.js
+++ b/liveServer.js
@@ -18,5 +18,11 @@ liveServer.start({
 liveServer.start({
 	port: 8778,
 	root: __dirname + '/dist-web',
-	open: false
+	open: false,
+	middleware: [
+		(req, res, next) => {
+			res.setHeader('Origin-Agent-Cluster', '?1');
+			next();
+		},
+	],
 });