fixing issue #4863

Author: jackyalbo

package.json

@@ -1,6 +1,6 @@
 {
   "name": "noobaa-core",
-  "version": "2.6.2",
+  "version": "2.6.3",
   "private": true,
   "license": "SEE LICENSE IN LICENSE",
   "description": "",

src/endpoint/s3/s3_rest.js

@@ -222,6 +222,7 @@ function parse_op_name(req) {
 
     // see http://docs.aws.amazon.com/AmazonS3/latest/dev/VirtualHosting.html
     const is_path_style = !host ||
+        !virtual_host_suffix || // added case for when no DNS name is defined - if we work with IP always using path-style
         virtual_host_suffix === '.' + host ||
         net.isIP(host) ||
         host === 'localhost'; // we added this case on top of the S3 doc cases to handle requests with IP host