nginx client\u max\u body\u size无法正常工作

我试图上传文件,当api直接调用时,它工作正常,但当它在代理之后时,它不工作,我使用nginx作为反向代理

NGINX-v nginx版本:nginx/1.15.0

也进行了1.17测试,相同 操作系统:CentOS 7.0

FORNTEN:React,使用axios

后端:nodejs 10

我错过什么了吗?

http设置:

http {
include       /etc/nginx/mime.types;
default_type  application/octet-stream;

log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                  '$status $body_bytes_sent "$http_referer" '
                  '"$http_user_agent" "$http_x_forwarded_for"';

access_log  /var/log/nginx/access.log  main;

sendfile        on;
#tcp_nopush     on;

client_body_in_file_only clean;
client_body_buffer_size 32K;
client_max_body_size 30M;


keepalive_timeout  65;

#gzip  on;

include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*.conf;
}

server {
    listen 80;
    server_name my_server_name;
    return 301 https://my_server_name;
}
server {

listen 443 ssl default_server;
server_name my_server_name;
ssl_certificate     path_to_cert;
ssl_certificate_key path_to_key;
root  path_to_build;
index index.html index.htm;

client_body_in_file_only clean;
client_body_buffer_size 32K;
client_max_body_size 30M;

location /api/ {
    proxy_set_header   X-Forwarded-For $remote_addr;
    proxy_set_header   Host $http_host;
    proxy_pass http://127.0.0.1:3003/api/;
    proxy_pass_request_headers on;
    proxy_cache                off;

client_body_in_file_only clean;
client_body_buffer_size 32K;
client_max_body_size 30M;

}
location / {

            try_files $uri /index.html;
    }
}

还删除了client_body_in_file_only&client\u body\u buffer\u大小仍然相同

任何帮助都将不胜感激