WebAssembly Threads: Localhost Works, Production Fails on SharedArrayBuffer
Context A WebAssembly module compiled with -pthread (Emscripten) or the WebAssembly Threads proposal loads and runs on http://localhost without explicit response headers. In production, the same binary fails at instantiation with OperationError or "SharedArrayBuffer not available" because the browser requires Cross-Origin-Opener-Policy: same-origin and Cross
perl
wasm