emcc 2.0.13 Pointer_stringify问题

emcc 2.0.13版本
使用 Pointer_stringify() 会报错 Pointer_stringify is not defined （使用第五章例子 websocket）
可用UTF8ToString替换

The issue is in chapter 5's websocket example. Look for uses of Pointer_stringify in the example code and replace them with UTF8ToString. Check the Emscripten documentation for the API change. Verify the fix by building the example with emcc and testing in a browser.

由索引模型根據 Issue 內容生成。