Option pre-check request problem

< H2 > No options is sent < / H2 >

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options

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non-simple requests found on the Internet must meet the following conditions:
request method is one of the following three methods: 

HEADGETPOST
The header information of

HTTP does not exceed the following fields: 

AcceptAccept-LanguageContent-LanguageLast-Event-IDContent-Type:application/x-www-form-urlencodedmultipart/form-datatext/plain
HeaderServerOption

I have all set json format here, why the first one didn"t send options pre-check

Network-security javascript html
Apr.07,2022

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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-64f5-1e96121-15ac.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e96121-15ac.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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