The absolute path for files uploaded sent through webhook gives me a 404.
### Summary
(Summarize the bug encountered concisely)
The absolute path for files uploaded sent through webhook gives me a 404.
### Steps to reproduce
Setup a webhook to a wiki edit. Upload an image to the wiki page. The url to the image sent in the webhook is not accessible. It returns a 404.
### Example Project
https://gitlab.com/charuru2009/public-test/wikis/test-uploads
### What is the current *bug* behavior?
Path returns 404.
### What is the expected *correct* behavior?
Path returns image.
I would actually highly prefer if the path is not related to gitlab at all and instead gives me the url of the underlying s3 item.
### Relevant logs and/or screenshots
https://gitlab.com/charuru2009/public-test/wikis/test-uploads
Added by `@phikai`: Relevant Webhook body:
```javascript
{
"object_kind": "wiki_page",
"user": {
"name": "Administrator",
"username": "root",
"avatar_url": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80\u0026d=identicon"
},
"project": {
"id":1,
"name":"Gitlab Test",
"description":"Maxime repellendus rem quo odit molestias.",
"web_url":"http://localhost:3001/gitlab-org/gitlab-test",
"avatar_url":null,
"git_ssh_url":"ssh://phikai@localhost:2222/gitlab-org/gitlab-test.git",
"git_http_url":"http://localhost:3001/gitlab-org/gitlab-test.git",
"namespace":"Gitlab Org",
"visibility_level":20,
"path_with_namespace":"gitlab-org/gitlab-test",
"default_branch":"master",
"ci_config_path":null,
"homepage":"http://localhost:3001/gitlab-org/gitlab-test",
"url":"ssh://phikai@localhost:2222/gitlab-org/gitlab-test.git",
"ssh_url":"ssh://phikai@localhost:2222/gitlab-org/gitlab-test.git",
"http_url":"http://localhost:3001/gitlab-org/gitlab-test.git"
},
"wiki":{
"web_url":"http://localhost:3001/gitlab-org/gitlab-test/wikis/home",
"git_ssh_url":"ssh://phikai@localhost:2222/gitlab-org/gitlab-test.wiki.git",
"git_http_url":"http://localhost:3001/gitlab-org/gitlab-test.wiki.git",
"path_with_namespace":"gitlab-org/gitlab-test.wiki",
"default_branch":"master"
},
"object_attributes": {
"content":"",
"format":"markdown",
"message":"Create extra image page",
"title":"extra image page",
"slug":"extra-image-page",
"url":"http://localhost:3001/gitlab-org/gitlab-test/wikis/extra-image-page",
"action":"create"
}
}
```
### Output of checks
This bug happens on GitLab.com TOO.
issue