miui8,经常性长时间后台唤起闪退

操作系统:Android 6.0.1 (MXB48T)

WebView:Mozilla/5.0 (Linux; Android 6.0.1; MIX Build/MXB48T; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36