Npm on linux/Docker ProGet won't login

I'm having trouble getting npm to login to a Docker-hosted ProGet (4.7.8 on c1858e8f1d8bdb46ed493a937e61bf951d7c730549abb54cd579e09332169510)

npm client is on macOS, I'm using npm adduser --verbose

login to Docker-hosted ProGet 4.7.8:

npm info it worked if it ends with ok
npm verb cli [ '/usr/local/Cellar/node/6.7.0/bin/node',
npm verb cli   '/usr/local/bin/npm',
npm verb cli   'adduser',
npm verb cli   '--verbose' ]
npm info using npm@3.10.7
npm info using node@v6.7.0
npm verb config Skipping project config: /Users/msmiley/.npmrc. (matches userconfig)
Username: mike.smiley
Password: 
Email: (this IS public) mike.smiley@a2ius.com
npm verb adduser before first PUT { _id: 'org.couchdb.user:mike.smiley',
npm verb adduser   name: 'mike.smiley',
npm verb adduser   password: 'XXXXX',
npm verb adduser   email: 'mike.smiley@a2ius.com',
npm verb adduser   type: 'user',
npm verb adduser   roles: [],
npm verb adduser   date: '2017-03-28T18:07:06.431Z' }
npm verb request uri http://ambrose.a2ius.com/npm/npm/-/user/org.couchdb.user:mike.smiley
npm verb request new user, so can't send auth
npm info attempt registry request try #1 at 2:07:06 PM
npm verb request id a8741d4396644053
npm http request PUT http://ambrose.a2ius.com/npm/npm/-/user/org.couchdb.user:mike.smiley

same login to 4.7.8 on Windows yields the following (as expected):

npm info it worked if it ends with ok
npm verb cli [ '/usr/local/Cellar/node/6.7.0/bin/node',
npm verb cli   '/usr/local/bin/npm',
npm verb cli   'adduser',
npm verb cli   '--verbose' ]
npm info using npm@3.10.7
npm info using node@v6.7.0
npm verb config Skipping project config: /Users/msmiley/.npmrc. (matches userconfig)
Username: (mike.smiley) 
Password: (or leave unchanged) 
Email: (this IS public) (mike.smiley@a2ius.com) 
npm verb adduser before first PUT { _id: 'org.couchdb.user:mike.smiley',
npm verb adduser   name: 'mike.smiley',
npm verb adduser   password: 'XXXXX',
npm verb adduser   email: 'mike.smiley@a2ius.com',
npm verb adduser   type: 'user',
npm verb adduser   roles: [],
npm verb adduser   date: '2017-03-28T18:02:20.183Z' }
npm verb request uri http://ignatius/npm/npm/-/user/org.couchdb.user:mike.smiley
npm verb request new user, so can't send auth
npm info attempt registry request try #1 at 2:02:20 PM
npm verb request id 662c0fb6d51a661f
npm http request PUT http://ignatius/npm/npm/-/user/org.couchdb.user:mike.smiley
npm http 201 http://ignatius/npm/npm/-/user/org.couchdb.user:mike.smiley
npm verb headers { 'cache-control': 'private',
npm verb headers   'content-length': '13',
npm verb headers   'content-type': 'application/json; charset=utf-8',
npm verb headers   server: 'Microsoft-HTTPAPI/2.0',
npm verb headers   'x-aspnet-version': '4.0.30319',
npm verb headers   'x-ua-compatible': 'IE=edge',
npm verb headers   'x-proget-version': '4.7.8.4',
npm verb headers   date: 'Tue, 28 Mar 2017 18:02:22 GMT' }
npm verb request invalidating /Users/msmiley/.npm/ignatius/npm/npm/-/user/org.couchdb.user_3Amike.smiley on PUT
npm info adduser Authorized user mike.smiley
Logged in as mike.smiley on http://ignatius/npm/npm/.
npm verb exit [ 0, true ]
npm info ok

I've tried different npm feed names as well as different user names. HTTP PUT reply never arrives, but connection remains open.

Product: ProGet
Version: 4.7.8

ben

I haven't been able to figure out the solution or what part of the code is choking, but the problem is that there's a colon in the URL.

For example, going to http://proget/%3A also hangs forever for the Linux version of ProGet.

I've logged this as PG-769.

This seems to be fixed as of the Docker image containing ProGet Version 4.7.14. The Docker image hash is: b7a3d6595c21d34997b4cbe6da9187801f410f17bff8e84228711bf29396a6ab pulled on 9/6/2017