"Error fetching diverging counts for branches" seen loading branch page
On https://gitlab.com/gitlab-com/runbooks/-/branches using a canary host, I'm seeing:
The counts appear to be there. However, the browser just returned a 304 Not Modified:
https://gitlab.com/gitlab-com/runbooks/-/branches/diverging_commit_counts?format=json&names=master&names=gitlab%2Fmichalw%2Fget-redis-commands-from-tcpdump&names=devin%2Fpostgres_troubleshooting&names=add_chef_groups_docs&names=T4cC0re-master-patch-19837&names=add_azure_testsub_notes&names=revert-555f6ca6&names=walg-wale-rules&names=T4cC0re-patch-1&names=jts%2Fdont-wake-me seems to return the right values too.
This seems like a frontend bug not gracefully handling the 304 message.