1 files changed, 6 insertions, 0 deletions
diff --git a/src/wasm/wasm-emscripten.cpp b/src/wasm/wasm-emscripten.cpp
index 78d2d25c6..d7c323da9 100644
--- a/src/wasm/wasm-emscripten.cpp
+++ b/src/wasm/wasm-emscripten.cpp
@@ -702,6 +702,12 @@ std::string EmscriptenGlueGenerator::generateEmscriptenMetadata(
     meta << maybeComma();
     meta << '"' << emAsmWalker.ids[code] << "\": [\"" << code << "\", ";
     printSet(meta, sigs);
+    meta << ", ";
+
+    // TODO: proxying to main thread. Currently this is unsupported, so proxy
+    // mode is "none", represented by an empty string.
+    meta << "[\"\"]";
+
     meta << "]";
   }
   meta << "},";