Code view fails to load when content contains some non-ASCII characters
This summary is created by Generative AI and may differ from the actual content.
Overview
Repository browsing UI was degraded and users were unable to load pages for files and directories with non-ASCII characters from February 26, 2026 at 22:10 UTC through February 27, 05:50 UTC
Impact
Error rate was 0.014% and peaked at 0.06% of requests to the service, with affected users seeing 404 errors
Trigger
Code change that altered how file and directory names were processed, causing incorrectly formatted data to be stored in an application cache
Detection
Investigation started after reports of impacted performance for some GitHub services, prompting an investigation
Resolution
Fix was deployed to invalidate the affected cache entries and progressively rolled out across all production environments
Root Cause
Code change that altered how file and directory names were processed, causing incorrectly formatted data to be stored in an application cache