Has Safari (macos 10.14.2 mojave) been unable to open caching?

as shown in the figure, the same page is requested multiple times: figure 1: in figure 1, the status of all requests in safari is 200, and the cache is not used
safari
firefox304
firefox

safari

firefox

Apr.14,2022
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-64f5-1e802dc-46899.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e802dc-46899.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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