Mattermost hanging indefinitely upon creating first user and then first team [Dev machine setup]

Summary

After installing development environment then running make run, I opened browser to access mattermost.
I then ended up creating a first user (which did not hang), but then I was prompted to create a first team.
On attempt of this, I find the GUI hanging (attached below as pic)

Steps to reproduce

I am not sure if I know exact steps other than just following the developer machine setup guide, but I’ve reproduced this many times in my environment (wiped environment clean, cloned repo again, etc…).
`
Version info:

git branch

  • master

git log | grep commit | head -1
commit 6a10941cb3e9d6e1b42be1f58c4b502cf0846b69
cat /etc/release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION=“Ubuntu 16.04.3 LTS”
NAME=“Ubuntu”
VERSION=“16.04.3 LTS (Xenial Xerus)”
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME=“Ubuntu 16.04.3 LTS”
VERSION_ID=“16.04”
VERSION_CODENAME=xenial
UBUNTU_CODENAME=xenial
`

Expected behavior

Able to create user and team and log in.

Observed behavior

Terminal where the containers were started (with make run) shows this message:

[2017/09/04 02:32:43 EDT] [DEBG] /api/v3/general/log_client:client code=0 rid=a36ttni8yinttgsp4ct8z7iwwr uid=rz5rmzpkbif4bpz4ip8a91npjh ip=::1 msg: Script error. row: 0 col: 0 stack: null url: [details: ]

Browser:

This was due to bad commit the other day. Master is now fixed and you should be fine running the latest master.
I suggests you pull the latest master.