Add message for when chromium hard reload bug breaks things

Wrap no JS message in noscript tag
Fix SharedArrayBuffer name in README
2026-03-21 23:16:37 +00:00 · 2026-03-21 23:15:57 +00:00 · 2026-03-20 13:36:54 +00:00 · 2026-03-20 13:35:59 +00:00
4 changed files with 16 additions and 6 deletions
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ and use the system from there.

 However, since everything is bootstrapped on the client, basically any
 HTTP server will do as long as it sets the appropriate response
-headers for `SharedMemoryBuffer` use:
+headers for `SharedArrayBuffer` use:

 - `Cross-Origin-Opener-Policy: same-origin`
 - `Cross-Origin-Embedder-Policy: require-corp`
--- a/deploy-manifest.conf
+++ b/deploy-manifest.conf
@@ -1,6 +1,7 @@
 asm.js
 boot.js
 emu.js
+favicon.png
 index.html
 prelude.f
 styles.css
--- a/emu.js
+++ b/emu.js
@@ -347,6 +347,16 @@ class Emulator {
 }

 window.addEventListener('DOMContentLoaded', () => {
-	document.getElementById('output').innerText = '';
-	window.emu = new Emulator();
+	const output = document.getElementById('output');
+	output.innerText = '';
+
+	if (!self.crossOriginIsolated) {
+		output.innerText = "Yeah so there's this thing where Chromium ends "
+			+ "up ignoring COOP/COEP\nheaders after a hard reload "
+			+ "sometimes, and I haven't been able to\nfigure out how to "
+			+ "work around it yet.  If you just wait a little while\nand "
+			+ "then reload normally then hopefully it should work haha";
+	} else {
+		window.emu = new Emulator();
+	}
 });
--- a/index.html
+++ b/index.html
@@ -7,8 +7,7 @@
  </head>
  <body>
 	<script type="text/javascript" src="emu.js"></script>
-	<div id="output">I'm afraid you need javascript enabled for this to work :(
+	<div id="output"><noscript>I'm afraid you need javascript enabled for this to work :(

-cringe, I know... but I promise there are no frameworks&#8482;</div>
-  </body>
+cringe, I know... but I promise there are no frameworks&#8482;</noscript></div></body>
 </html>
Author	SHA1	Message	Date
Camden Dixie O'Brien	aa9c18346d	Add message for when chromium hard reload bug breaks things	2026-03-21 23:16:37 +00:00
Camden Dixie O'Brien	a2f06c977e	Wrap no JS message in noscript tag	2026-03-21 23:15:57 +00:00
Camden Dixie O'Brien	58e2cf3e1f	Fix SharedArrayBuffer name in README	2026-03-20 13:36:54 +00:00
Camden Dixie O'Brien	efdae93d90	Add favicon to deploy manifest	2026-03-20 13:35:59 +00:00