[binaryen.js] Avoid use of the global buffer var which emcc has removed (#5419)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/js/binaryen.js-post.js b/src/js/binaryen.js-post.js
index 86b063c0e..49a8d2b69 100644
--- a/src/js/binaryen.js-post.js
+++ b/src/js/binaryen.js-post.js
@@ -2597,7 +2597,7 @@ function wrapModule(module, self = {}) {
         const ptr = _malloc(size);
         Module['_BinaryenCopyMemorySegmentData'](module, id, ptr);
         const res = new Uint8Array(size);
-        res.set(new Uint8Array(buffer, ptr, size));
+        res.set(HEAP8.subarray(ptr, ptr + size));
         _free(ptr);
         return res.buffer;
       })(),