Steps to reproduce: 1. with macOS Ventura on Safari Version 16.0 (18614.1.19.1.5) 2. Go to https://mozilla.github.io/translate/ Expected: page loads and menu are initialized. Actual: drop down menu stays blank and the page is inactive. The console displays: ``` [Debug] Message 'import' received from main script (worker.js, line 33) [Warning] wasm streaming compile failed: CompileError: WebAssembly.Module doesn't parse at byte 1088: can't get 0th Type's return value (bergamot-translator-worker.js, line 734) [Warning] falling back to ArrayBuffer instantiation (bergamot-translator-worker.js, line 735) [Warning] failed to asynchronously prepare wasm: CompileError: WebAssembly.Module doesn't parse at byte 1088: can't get 0th Type's return value (bergamot-translator-worker.js, line 723) [Warning] CompileError: WebAssembly.Module doesn't parse at byte 1088: can't get 0th Type's return value (bergamot-translator-worker.js, line 647) [Error] Unhandled Promise Rejection: RuntimeError: abort(CompileError: WebAssembly.Module doesn't parse at byte 1088: can't get 0th Type's return value). Build with -s ASSERTIONS=1 for more info. (anonymous function) rejectPromise promiseReactionJob ``` the message seems to be generated by https://github.com/WebKit/WebKit/blob/612c245823a515c8c70c2ad486957bd8a850f0f9/Source/JavaScriptCore/wasm/WasmStreamingParser.cpp#L63-L70 This is currently working both in Firefox and Chrome.
<rdar://problem/97047187>
Fixed with SIMD support.