How do I use webpack-dev-server proxyTable.bypass?

there is a bypass Filter in proxyTable. How do I use it? Is it the return path? Or return true / false

Feb.27,2021
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-64f5-1bdc6b6-31305.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bdc6b6-31305.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?