Nginx Reverse Proxy Returns a 405 status code workaround for post requests to HTML pages

The implementation is as follows:

server {    listen80;    listen443 ssl;     server_namenirvana.test-a.gogen;    ssl_certificate       /etc/nginx/ssl/nirvana.test-a.gogen.crt;    ssl_certificate_key  /etc/ nginx/ssl/nirvana.test-a.gogen.key;    proxy_connect_timeout 600;     proxy_read_timeout 600;    proxy_send_timeout 600;     client_max_body_size 10m;     #error_page  405 =200 /ding/face_ matching.html;    location / {         Proxy_pass http://nirvana-server-a;        proxy_next_upstream  http_500 http_502 http_503 error timeout invalid_header;         proxy_set_header host  $host;        proxy_set_header  x-forwarded-for  $remote _addr;    }    location ~.*\. (Html|css|js|jpg|json|png|map|\ttf*|\woff2*|\woff*|eot|otf|ttf|json|cur|woff|svg|woff2|m3u8|ts|mp3) $ {         proxy_method GET;         proxy_pass http://nirvana-browser-a;        proxy_ next_upstream http_500 http_502 http_503 error timeout invalid_header;         proxy_set_header Host  $host;         proxy_set_header X-Forwarded-For  $remote _addr;    }     access_log  /var/log/nginx/nirvana-test-a.log  main;}

Note: There are many workarounds, and I'm here to force the conversion of the request to get

Nginx Reverse Proxy Returns a 405 status code workaround for post requests to HTML pages