From 0ff3def80cf96d92d6db2e2139bf6bf65773218a Mon Sep 17 00:00:00 2001
From: sebastien <lorber.sebastien@gmail.com>
Date: Fri, 26 Sep 2025 16:16:26 +0200
Subject: [PATCH] Fix Rspack/SWC mermaid ELK layout dependency required bug

---
 packages/docusaurus-theme-mermaid/src/index.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/packages/docusaurus-theme-mermaid/src/index.ts b/packages/docusaurus-theme-mermaid/src/index.ts
index 622c6b2ef72b..288000902be4 100644
--- a/packages/docusaurus-theme-mermaid/src/index.ts
+++ b/packages/docusaurus-theme-mermaid/src/index.ts
@@ -49,6 +49,18 @@ export default async function themeMermaid(): Promise<Plugin<void>> {
             ),
           }),
         ],
+
+        // Workaround for weird Rspack/SWC issue
+        // See https://github.com/facebook/docusaurus/issues/11430
+        resolve: {
+          alias: {
+            ...(elkLayoutEnabled
+              ? {}
+              : {
+                  '@mermaid-js/layout-elk': false,
+                }),
+          },
+        },
       };
     },
   };