fix

s3-proxy/nginx.conf

@@ -59,7 +59,7 @@ http {
             proxy_hide_header 'Access-Control-Expose-Headers';
         }
 
-        location ~ ^/(?<host>[^/]+\.sharepoint\.com)(?<path>/.*) {
+        location ~ ^/(?<sharepoint_host>[^/]+\.sharepoint\.com)(?<sharepoint_path>/.*) {
             client_max_body_size 10G;
 
             proxy_http_version 1.1;
@@ -84,7 +84,7 @@ http {
             # Proxy the request to S3. It *MUST* be done inside an "if", using "$1" -
             # calling "set" causes the URL to be decoded, breaking paths with spaces, etc.
             if ($request_uri ~ "^/[^/?]+(.*)") {
-                proxy_pass 'https://$host$1';
+                proxy_pass 'https://$sharepoint_host$1';
             }
 
             # # Remove any existing CORS headers from the response to avoid duplicates.