When slash is not decoded

How to resolve NPM scoped package publish failure that result in error 405
AuthorFullName__c
Matthew Wang
articleNumber
000001019
ft:sourceType
Salesforce
FirstPublishedDate
2016-09-05T14:54:42Z
lastModifiedDate
2019-01-22
VersionNumber
7


20151014140151|334|REQUEST|127.0.0.1|admin|PUT|/api/npm/npm-local/@jfrog%2fjfrogpkg|HTTP/1.1|201|1545