---------------------
- Change AttributeError to HTTPPreconditionFailed in FileManager
[masipcat]
- Reverted "Replaced Response.content_{type,length} with Response.set_content_{type,length}".
Using setter to avoid breaking `Response.content_{type,length} = ...`
[masipcat]
- Handle error when "None" value provided for behavior data
[vangheem]
- Handle connection reset errors on file download
[vangheem]