When you click the browser back button, you go back to the previous page. What did the browser do in between?

such as the title: when you click the browser back button, go back to the previous page, what does the browser do in between?
would like to know a detailed description or links to related materials.

Jul.07,2022

in a nutshell, this is my personal understanding. Read the information in the site browsing history stack to get the site address and related cache and reload the static page information. And then re-send login and other information to obtain the landing status.
you still need to look for information in more detail.


history.html-sharpdom-history-back

history.html-sharptraverse-the-history-by-a-delta

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-64f5-1b3b7d9-2c2b1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3b7d9-2c2b1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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