Fix FormData missing boundary

lxsmnsyc · lxsmnsyc · commit a1f33a64e7bf · 2026-01-16T08:05:01.000+08:00
diff --git a/packages/start/src/server/server-runtime.ts b/packages/start/src/server/server-runtime.ts
@@ -42,7 +42,6 @@ function getHeadersAndBody(body: any): {
     case body instanceof FormData:
       return {
         headers: {
-          "Content-Type": "multipart/form-data",
           [BODY_FORMAT_KEY]: BodyFormat.FormData,
         },
         body,
