How does the slack website parse the URL images and text in the message without going through server?

if I enter a message containing the URL on slack"s chat site

https://codeshelper.com/a/1190000014660235-sharparticleHeader0

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URL slack html text 3 slack web app

  1. favio icon URL : https://static.segmentfault.c...
  2. image URL : https://static.segmentfault.c...
  3. : Htte.....

Chrome URL 5 http

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  1. http body headers URL
  2. 3
  3. http body headers URL
  5. request URL URL https://static.segmentfault.com/v-5b973eab/global/img/favicon.ico https://static.segmentfault.com/v-5b973eab/global/img/touch-icon-512.png

slack react web app URL

URL 2 http request

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React.js ajax web
Jun.16,2021

through WebSocket
you may ask why you didn't see this capture, because you opened F12 after this connection. Refresh the page and you will have

.

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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-64f5-1e50a9b-4485a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e50a9b-4485a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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