- sanitize Content-Disposition filename via stringutil.SanitizeFilename to neutralize header injection
- use i18n.Tc for count-aware singular/plural attachment label
- append download anchor to DOM and defer URL.revokeObjectURL for cross-browser reliability
Agents can download a full conversation as a .txt file from the
header menu. The conversation sidebar now shows the CSAT rating and
feedback once the customer responds.
Abhinav Raut