gitlab pipeline view favicon not updating live?

Summary

The favicon of a pipeline page (potentially merge request and job pages as well) does not update with the other statuses represented withing the page.

Steps to reproduce

1. Have a pipeline running
2. Let the pipeline finish
3. See a different status in the favicon vs the statuses represented in the page

Example Project

Any pipeline on GitLab.com

What is the current bug behavior?

The favicon represents the status as when you opened the pipeline page. (It refreshed upon page load)

What is the expected correct behavior?

The favicon should represent the same status as the overall pipeline status badge

Relevant logs and/or screenshots

This bug is still there! Grooming the description

Pipeline still running	Pipeline finished

Output of checks

This bug happens on GitLab.com

Results of GitLab environment info

Expand for output related to GitLab environment info

(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:env:info`)

(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)

Results of GitLab application Check

Expand for output related to the GitLab application check

(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:check SANITIZE=true)
(For installations from source run and paste the output of:
sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
(we will only investigate if the tests are passing)

Possible fixes

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