the axios, used starts at 415 and is changed to the request header "Content-Type":"application/json;charset=utf-8". After the request header, it begins to report 400.
the upper parameter is originally like this
for some unknown reason, the interface keeps reporting 400
I haven't used axios, but let me help you configure it.
you can try this configuration to see if you can prevent request's payload from being modified
when the upper parameter sent by axios is an array, the backend will not receive the parameter, and the request header can keep 'Content-Type':'application/x-www-form-urlencoded; charset=utf-8'.
then convert the array to be uploaded into a string using JSON.stringify (arr)
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