Vue ssr data pre-rendering problem

1. What is the relationship between client-side data prefetching and server-side data prefetching?
2. When prefetching data on the server, if node forwards the interface, why can"t you access it if you request your own interface when prefetching data?
3. What are the mixing rules between server and client? (what are the criteria for determining whether the dom is the same? )

Jan.24,2022
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-64f5-1b39c6e-2c1b4.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b39c6e-2c1b4.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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