Element admin switching tab based on routing how to save my last tab operation

tab switching is carried out through routing. When the route jumps to another route and then turns back, the route information has been reset to the initialization state. How to save the operation of the previous step when the route jumps back? is there a good idea?
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Mar.14,2021

resolved, use keep-alive for route caching

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-64f5-1c2e38c-48c17.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1c2e38c-48c17.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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