Avoid tooo many warns due to clients' closed connections

[gallir]

In https, the clients close the connections when they receive the expected data, it's harmless. This patch avoids warnings if it could write bytes to the clients.

[elazarl]

Hi,

Thanks for the PR.

I'm not sure I follow. Why would bytes be <0? Why is that a sign we should ignore the error.

In principle I think removing those warnings is a very good idea.

[elazarl]

@gallir ping. Can you please have a look and explain?