Question: UsingHead always returns 0 for Content-Length header even when explicitly specified #93

New Issue

2025-12-29T08:22:08+01:00

adam commented

2025-12-29 08:22:08 +01:00

Originally created by @pm7y on GitHub (Apr 16, 2018).

Originally assigned to: @StefH on GitHub.

The response to a HEAD request should be the length of the file (without the actual body) so something like this (below) should return 1024 in the Content-Length response header but it always returns 0. Something internally must be overwriting my value of "1024" back to "0".

server
    .Given(Request.Create().WithPath($"/SomeFile.zip").UsingHead())
    .RespondWith(Response.Create()
        .WithHeader("Content-Length", "1024")
    );

Originally created by @pm7y on GitHub (Apr 16, 2018). Originally assigned to: @StefH on GitHub. The response to a HEAD request should be the length of the file (without the actual body) so something like this (below) should return 1024 in the Content-Length response header but it always returns 0. Something internally must be overwriting my value of "1024" back to "0". ``` c# server .Given(Request.Create().WithPath($"/SomeFile.zip").UsingHead()) .RespondWith(Response.Create() .WithHeader("Content-Length", "1024") ); ```

adam closed this issue

2025-12-29 08:22:08 +01:00

adam commented

2025-12-29 08:22:09 +01:00

@StefH commented on GitHub (Apr 16, 2018):

This is a restricted header:

https://msdn.microsoft.com/en-us/library/78h415ay(v=vs.110).aspx

@StefH commented on GitHub (Apr 16, 2018): This is a restricted header: https://msdn.microsoft.com/en-us/library/78h415ay(v=vs.110).aspx

adam commented

2025-12-29 08:22:10 +01:00

@StefH commented on GitHub (Apr 19, 2018):

@pmcilreavy Does this answer your question?

@StefH commented on GitHub (Apr 19, 2018): @pmcilreavy Does this answer your question?

adam commented

2025-12-29 08:22:10 +01:00

@StefH commented on GitHub (Apr 24, 2018):

Closing

@StefH commented on GitHub (Apr 24, 2018): Closing

adam commented

2025-12-29 08:22:10 +01:00

@o7g8 commented on GitHub (May 16, 2018):

@StefH the documentation https://msdn.microsoft.com/en-us/library/78h415ay(v=vs.110).aspx says

Tests whether the specified HTTP header can be set for the request.

But in this example the code attempts to set in the response.
Why shouldn't it be possible for a mock to specify an arbitrary value of Content-Length?

@o7g8 commented on GitHub (May 16, 2018): @StefH the documentation https://msdn.microsoft.com/en-us/library/78h415ay(v=vs.110).aspx says ``` Tests whether the specified HTTP header can be set for the request. ``` But in this example the code attempts to set in the _response_. Why shouldn't it be possible for a _mock_ to specify an arbitrary value of `Content-Length`?

adam commented

2025-12-29 08:22:10 +01:00

@StefH commented on GitHub (May 25, 2018):

Solved, see NuGet 1.0.3.18

@StefH commented on GitHub (May 25, 2018): Solved, see NuGet 1.0.3.18

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Reference: starred/WireMock.Net#93