Run compiled code in an extension

You can run compiled code in your extension at near-native speed, by using WebAssembly (Wasm). WebAssembly is a low-level assembly-like language which many other languages, such as C, C++, or Rust, can compile to, and which can run at near native-speed in web browsers.

See:

• WebAssembly at MDN.
• webassembly.org

Native Client (NaCl) no longer supported

To enhance web security and performance, Native Client (NaCl) is no longer supported by Microsoft Edge (along with other browsers).

NaCl is a sandbox for running compiled C and C++ code in browsers efficiently and securely, independently of the user's operating system. WebAssembly (Wasm) is recommended instead of NaCl.

To Run compiled code in an extension, we recommend using WebAssembly instead of NaCl. See:

• WebAssembly Migration Guide in Chrome docs.
• WebAssembly at MDN.
• webassembly.org