How is the Vue used by iqiyi's master station compatible with ie8?

my vue devtool detects that iqiyi"s main website is written in vue, but it is compatible with ie8,. Ask the gods how to do it. Are there two sets of codes?

Ie8-compatibility vue.js
Mar.09,2021

Previous: Could you tell me how to debug the mobile style of Huawei Glory?

Next: Service not supported by nodemailer

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1c12a46-32dfc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1c12a46-32dfc.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?