Features
- #8489
c2a0d05- Control Display of Error, Info, Warning. Thanks @freddyaboulton! - #8571
a77877f- First time loading performance optimization. Thanks @baojianting! - #8600
7289c4b- Add credentials: include and Cookie header to prevent 401 error. Thanks @yinkiu602! - #8522
bdaa678- add handle_file docs. Thanks @pngwn!