How to use js to load css files and cache these loaded css

I am currently loading it in this way, but this cannot be cached to the browser.

$("head"). Append ($(" < link rel= "stylesheet" type= "text/css" / >")

.attr("href", `aaa.css?1525440977`) );
Mar.22,2021

try ? 1525440977 .


the dynamically loaded data should be cached by setting the server to return 304, right?

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-64f5-1e50be3-450ef.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e50be3-450ef.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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