Network graph no longer loads

Looks like this is the cause: https://sentry.gitlap.com/gitlab/gitlabcom/issues/10483/

https://gitlab.com/gitlab-org/gitlab-ce/network/master

mentioned in issue #20946 (closed)

Actually, this is happening due to gitlab-org/gitlab-ce#21119:

https://sentry.gitlap.com/gitlab/gitlabcom/issues/10483/

Added frontend reproduced on GitLab.com labels

mentioned in issue #21111 (closed)

mentioned in commit 415e22a2

mentioned in merge request !5922 (merged)

mentioned in commit 5cb488e8

Status changed to closed by merge request !5922 (merged)

mentioned in commit 707bb9dc

Mentioned in commit 5cb488e8

Mentioned in commit nick.thomas/gitlab-ee@707bb9dc

mentioned in merge request !14785