From 7ea688a86c67f190371a43185679f78d2e1e69a9 Mon Sep 17 00:00:00 2001
From: Your Name <you@example.com>
Date: Wed, 26 Aug 2026 18:53:14 -0400
Subject: [PATCH] up body limit

---
 index.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index bedc496..6c2271e 100644
--- a/index.js
+++ b/index.js
@@ -62,8 +62,14 @@ function logError(structureId, routeId, e) {
   model.createLog(structureId, routeId, formatError(e), true);
 }
 
-app.use(bodyParser.urlencoded({ extended: true }));
-app.use(bodyParser.json());
+// body-parser defaults to a 100kb limit, which is far too small for what
+// structures actually post: an emulator save state, a canvas data URL, a couple
+// of images. It fails as an opaque HTML 413 from the middleware, before any
+// handler runs, so the structure cannot even report it usefully. Files still go
+// through express-fileupload below; this is only the JSON/form path.
+const BODY_LIMIT = "25mb";
+app.use(bodyParser.urlencoded({ extended: true, limit: BODY_LIMIT }));
+app.use(bodyParser.json({ limit: BODY_LIMIT }));
 app.use(express.static("public"));
 app.use(fileUpload());