about WebAssembly.Memory

bjorn3 · Sep 18, 2024 · e5ca52a · e5ca52a
1 parent 81c6523
commit e5ca52a
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/wasi_farm/farm.ts b/src/wasi_farm/farm.ts
@@ -47,6 +47,10 @@ export class WASIFarm {
 
     this.fds = new_fds;
 
+    // WebAssembly.Memory can be used to create a SharedArrayBuffer, but it cannot be transferred by postMessage.
+    // Uncaught (in promise) DataCloneError:
+    //    Failed to execute 'postMessage' on 'Worker':
+    //    SharedArrayBuffer transfer requires self.crossOriginIsolated.
     try {
         new SharedArrayBuffer(4);
         this.can_array_buffer = true;