HTTP code 0 returned by cloudfront

Question

Setup:

I have an API hosted on AWS and using cloudfront for the same.

Problem:

Analyzing cloudfront logs we came across requests which were returned csstatus(HTTP) 0.

What does it mean??

Answer 1

There isn't a csstatus, so I assume you are referring to sc-status.

000, which indicates that the viewer closed the connection (for example, closed the browser tab) before CloudFront could respond to a request

https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/AccessLogs.html#LogFileFormat