Expand merge request diff to an entire file, button does not show

Summary

Expand merge request diff to an entire file" doesn't work. "Show full file" button isn't there.

Steps to reproduce

View file diffs in merge requests and observe button isn't there

What is the current bug behavior?

No button

What is the expected correct behavior?

Button

Relevant logs and/or screenshots

Screen_Shot_2019-03-23_at_9.44.57_AM

Output of checks

Results of GitLab environment info

Expand to see results of GitLab env info 
System information
System:		Ubuntu 18.04
Proxy:		no
Current User:	git
Using RVM:	no
Ruby Version:	2.5.3p105
Gem Version:	2.7.6
Bundler Version:1.16.6
Rake Version:	12.3.2
Redis Version:	3.2.12
Git Version:	2.18.1
Sidekiq Version:5.2.5
Go Version:	unknown

GitLab information
Version:	11.9.0-ee
Revision:	2f3536bdda8
Directory:	/opt/gitlab/embedded/service/gitlab-rails
DB Adapter:	postgresql
DB Version:	9.6.11
URL:		https://git.company.com
HTTP Clone URL:	https://git.company.com/some-group/some-project.git
SSH Clone URL:	git@git.company.com:some-group/some-project.git
Elasticsearch:	no
Geo:		no
Using LDAP:	no
Using Omniauth:	yes
Omniauth Providers:

GitLab Shell
Version:	8.7.1
Repository storage paths:
- default: 	/var/opt/gitlab/git-data/repositories
GitLab Shell path:		/opt/gitlab/embedded/service/gitlab-shell
Git:		/opt/gitlab/embedded/bin/git

Results of GitLab application Check

Expand for output related to the GitLab application check 
Checking GitLab subtasks ...


Checking GitLab Shell ...


GitLab Shell: ... GitLab Shell version >= 8.7.1 ? ... OK (8.7.1)
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Check GitLab API access: OK
Redis available via internal API: OK


Access to /var/opt/gitlab/.ssh/authorized_keys: OK
gitlab-shell self-check successful


Checking GitLab Shell ... Finished


Checking Gitaly ...


Gitaly: ... default ... OK


Checking Gitaly ... Finished


Checking Sidekiq ...


Sidekiq: ... Running? ... yes
Number of Sidekiq processes ... 1


Checking Sidekiq ... Finished


Checking Incoming Email ...


Incoming Email: ... Reply by email is disabled in config/gitlab.yml


Checking Incoming Email ... Finished


Checking LDAP ...


LDAP: ... LDAP is disabled in config/gitlab.yml


Checking LDAP ... Finished


Checking GitLab App ...


Git configured correctly? ... yes
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config up to date? ... yes
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory exists? ... yes
Uploads directory has correct permissions? ... yes
Uploads directory tmp has correct permissions? ... yes
Init script exists? ... skipped (omnibus-gitlab has no init script)
Init script up-to-date? ... skipped (omnibus-gitlab has no init script)
Projects have namespace: ...
4/8 ... yes
4/10 ... yes
4/12 ... yes
4/14 ... yes
4/18 ... yes
4/19 ... yes
4/20 ... yes
4/21 ... yes
4/22 ... yes
4/23 ... yes
4/24 ... yes
4/25 ... yes
4/26 ... yes
4/27 ... yes
4/28 ... yes
4/29 ... yes
4/30 ... yes
4/31 ... yes
4/32 ... yes
4/33 ... yes
4/34 ... yes
4/37 ... yes
4/38 ... yes
4/39 ... yes
4/40 ... yes
4/41 ... yes
4/42 ... yes
4/43 ... yes
4/44 ... yes
4/45 ... yes
4/46 ... yes
Redis version >= 2.8.0? ... yes
Ruby version >= 2.3.5 ? ... yes (2.5.3)
Git version >= 2.18.0 ? ... yes (2.18.1)
Git user has default SSH configuration? ... yes
Active users: ... 10
Elasticsearch version 5.6 - 6.x? ... skipped (elasticsearch is disabled)


Checking GitLab App ... Finished


Checking GitLab subtasks ... Finished

Possible fixes

(If you can, link to the line of code that might be responsible for the problem)

Edited by 🤖 GitLab Bot 🤖