< ignore_js_op > what label is this?

you can always see this strange tag on some forums.
is displayed directly on the page probably because the browser does not support it?
is curious about where this tag comes from and what it does.

clipboard.png

Mar.04,2021

Custom tags. HTML can customize the label.

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-64f5-1e3c399-43e28.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e3c399-43e28.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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