FormData not worked

[dharmesh7304]

When we append new data to the formData and pass it to the rb. body(formData, 'multipart/form-data');
formData becomes empty due to RequestBuilder logic. In case of a 'multipart/form-data' request only,
I am using Angular 19.0.0

[luisfpg]

I don't understand whether you're using RequestBuilder directly or is it some generated function that shows the issue?
Can you provide a code example to reproduce, as well as the relevant specification?