From InfoWorld: For Google, it is time to ring out the old and ring in the new when it comes to running native code in the browser. To this end, Google is making the WebAssembly portable code format its solution for native code going forward, displacing the company’s Portable Native Client (PNaCl).
PNaCl lacked the desired cross-browser compatibility offered by WebAssembly, the company said. PNaCl support will be removed early next year except in Chrome Apps and Extensions. Google said usage of PNACl is low enough to warrant deprecation and that WebAssembly has a vibrant ecosystem, making it a better fit. “Historically, running native code on the web required a browser plugin. In 2013, we introduced the PNaCl sandbox to provide a means of building safe, portable, high-performance apps without plugins,” Google’s Brad Nelson, software engineer on NaCl, PNaCl, and WebAssembly, said. “Although this worked well in Chrome, it did not provide a solution that worked seamlessly across all browsers.”
The switch represents more momentum for WebAssembly, a cross-browser format that has the potential to improve the performance of web applications and enable other languages beyond JavaScript in browsers. All major browser vendors—Apple, Google, Microsoft, and Mozilla—have participated in its development. Cross-browser consensus has been reached on an initial version of WebAssembly, including the API and binary format. “Applications using WebAssembly already run in multiple browsers: Chrome and Firefox support WebAssembly natively and Edge and Safari support WebAssembly in preview versions of their browsers,” Nelson said.
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