修改了不会重复页面的一些bug

feige

2023-06-06 a85494cc5769c3dab7f210c012fba1c45103e779

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var nativeFunctionToString = require('./_function-to-string');
var WeakMap = require('./_global').WeakMap;
 
module.exports = typeof WeakMap === 'function' && /native code/.test(nativeFunctionToString.call(WeakMap));