Worked on the open-telemetry/opentelemetry-go repository to address an issue with OTLP endpoint URL handling, specifically preserving trailing slashes as required by OpenTelemetry specifications. Updated the cleanPath function to retain trailing slashes, ensuring that endpoints for otlptrace and otlpmetric operate correctly and improving interoperability with collectors and exporters. This change reduced configuration friction and potential support issues by restoring expected endpoint behavior. The work involved debugging and modifying Go code, with a focus on HTTP, OTLP, and URL parsing. No new features were added during this period, but the targeted fix enhanced reliability for tracing and metric export workflows.