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Web Web UA Twitter xfit_jp https://www.x-fit.jp/tips/188 user-Agent UAUserAgentWeb / userAgent ### version 1.1.3 ### version 1.1.2 userAgent window.navigator.userAgentUA ### version 1.1.1 userAgent ### version 1.1.0 Chrome defalultGoogleChromeUserAgent ### version 1.0.14 2013/9/13 ### version 1.0.13 ### version 1.0.12 ### version 1.0.11 2013/7/19 ### version 1.0.10 2013/6/10 ### version 1.0.9 UserAgentnavigator.userAgent ### version 1.0.8 EVENT_TYPE_ERR