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Re: Issues with http proxy requests with 7.79.0

From: Dan Fandrich via curl-library <>
Date: Mon, 20 Sep 2021 21:46:19 -0700

On Tue, Sep 21, 2021 at 12:35:31AM -0400, Abhinav Singhal via curl-library wrote:
> I'm tasked to upgrade the curl version at work from the current 7.71 to the
> latest 7.79.0. The issue I am running into is that one of the tests that
> validates whether an http proxy server is running by sending it a dummy url is
> failing with this error:
> Error: command failed: HTTP proxy configuration is invalid. Reason: Empty
> reply from server
> The expected HTTP error message for this operation is 403 (forbidden), but the
> server is not returning anything. The same code works perfectly fine with
> 7.71.1. 

Are you saying the server returns something with 7.71.1 but doesn't return
anything with 7.79.0? Have you looked at a trace of the requests to see what
is different between the two versions?
Received on 2021-09-21