1 files changed, 6 insertions, 1 deletions

diff --git a/web/storage.cpp b/web/storage.cpp
index d540a5c..780926e 100644
--- a/web/storage.cpp
+++ b/web/storage.cpp
@@ -43,7 +43,12 @@ EM_ASYNC_JS(int, download_and_store, (const char *key, const char *url), {
             self instanceof WorkerGlobalScope;
         console.assert(inBrowser || inWorker, "Non-browsers not supported");
 
-        // See comment in callback.js about this workaround
+        // This is a workaround related to usign WASM64
+        // JavaScript's UTF8ToString expects a pointer argument, which for JS is
+        // of type "number", but WASM64 is passing a BigInt. See also:
+        // https://github.com/emscripten-core/emscripten/issues/21541
+        // (but I could not make the suggested solution work in this case).
+        // TODO: check if there is a better workaround.
         const non64_url = Number(url);
         const non64_key = Number(key);
         url = UTF8ToString(non64_url);