The front end uses httpclient in the angular library to upload files and set

headers: { ‘Content-Type’: ‘multipart/form-data’ }

When the backend uses featurejs to receive, an error is reported

error: multipart: boundary not found
error reason: multipart does not find the boundary

The uploaded file is a form in multipart/form data format of post request

content-type: multipart/form-data is not followed by the boundary

To sum up, the request header was set many times, overwriting the original form enctype = “multipart/form data”

Conclusion: it is not necessary to set content type: Music/form data repeatedly, otherwise the original may be overwritten and unexpected errors may be caused.

Correct way to get headers:

When uploading formdata type data, you do not need to manually set content typebrowser performance:

it’s done!