Find file functionality issue

Summary

I have issue with results of Find file functionality connected to fact that all link represented on Find file which are in sub folders have URL encoded character / in %2F .

I use Apache server instead nginx from some authentication reason , and Apache server have different defaults from nginx.

Apache server by default treat URL encoded link like potential security risk and return 404 error code (before any module are able to work with link), it is possible to change that configuration using AllowEncodedSlashes ) on other hand nginx by default decode URL encoded link.

Is it possible to configure GitLAB to not create such a type of link (from my point of view it isnt clear way / is changed to URL encoded value od %2F).

Steps to reproduce

On last few version of gitlab-omnibus CE (Centos 7 package 64 bit) when use Apache 2.4 serevr instead of nginx from package gitlab-ce , on project page select Find file button.
.

Example Project

Not possible to replicate on GitLab.com

What is the current bug behavior?

Return 404 page becouse Apache server initiate 404 error code.

What is the expected correct behavior?

Return selected file (if I change %2F with / manualy in link i got selected file)

Relevant logs and/or screenshots

Results of GitLab environment info

Expand for output related to GitLab environment info

[root@gitlab ~]# gitlab-rake gitlab:env:info
System information
System:
Current User:	git
Using RVM:	no
Ruby Version:	2.6.3p62
Gem Version:	2.7.9
Bundler Version:1.17.3
Rake Version:	12.3.3
Redis Version:	3.2.12
Git Version:	2.22.0
Sidekiq Version:5.2.7
Go Version:	unknown
GitLab information
Version:	12.4.1
Revision:	4281915cfeb
Directory:	/opt/gitlab/embedded/service/gitlab-rails
DB Adapter:	PostgreSQL
DB Version:	10.9
URL:		https://gitlab.pero.com
HTTP Clone URL:	https://gitlab.pero.com/some-group/some-project.git
SSH Clone URL:	git@gitlab.pero.com:some-group/some-project.git
Using LDAP:	no
Using Omniauth:	yes
Omniauth Providers: shibboleth
GitLab Shell
Version:	10.2.0
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

[root@gitlab ~]# sudo gitlab-rake gitlab:check SANITIZE=true
Checking GitLab subtasks ...
Checking GitLab Shell ...
GitLab Shell: ... GitLab Shell version >= 10.2.0 ? ... OK (10.2.0)
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Internal API available: OK
Redis available via internal API: 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: ...
11/1 ... yes
12/2 ... yes
13/3 ... yes
14/5 ... yes
13/7 ... yes
18/10 ... yes
6/12 ... yes
18/13 ... yes
6/14 ... yes
Redis version >= 2.8.0? ... yes
Ruby version >= 2.5.3 ? ... yes (2.6.3)
Git version >= 2.22.0 ? ... yes (2.22.0)
Git user has default SSH configuration? ... yes
Active users: ... 12
Is authorized keys file accessible? ... yes
Checking GitLab App ... Finished
Checking GitLab subtasks ... Finished

Possible fixes

Use / instead of %2F in URL link to file.

/label ~bug