优化sdk控制

‘liusuyi’

2023-06-30 3089fbc788d1dbd638d1cfd9c2f9b7f2011d0af0

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var userAgent = require('../internals/engine-user-agent');
 
var firefox = userAgent.match(/firefox\/(\d+)/i);
 
module.exports = !!firefox && +firefox[1];