From 6d5dc0dfb77823fdf8d13c1536d027a4d15f636a Mon Sep 17 00:00:00 2001
From: Hugh Nimmo-Smith <hughns@users.noreply.github.com>
Date: Wed, 18 Dec 2024 17:03:29 +0000
Subject: [PATCH] Fix loading of matrix-sdk-crypto-wasm when running in local
 development mode (#2915)

Fixes problem loading rust crypto when using `yarn dev`
---
 vite.config.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/vite.config.js b/vite.config.js
index 1feb7d66..7f088801 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -109,5 +109,12 @@ export default defineConfig(({ mode }) => {
         "@radix-ui/react-dismissable-layer",
       ],
     },
+    // Vite is using esbuild in development mode, which doesn't work with the wasm loader
+    // in matrix-sdk-crypto-wasm, so we need to exclude it here. This doesn't affect the
+    // production build (which uses rollup) which still works as expected.
+    // https://vite.dev/guide/why.html#why-not-bundle-with-esbuild
+    optimizeDeps: {
+      exclude: ["@matrix-org/matrix-sdk-crypto-wasm"],
+    },
   };
 });