[jira] [Commented] (HTTPCLIENT-2342) Regression: Content-Type header not returned anymore

[Arturo Bernal (Jira)]

    [ 
https://issues.apache.org/jira/browse/HTTPCLIENT-2342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17883231#comment-17883231
 ] 

Arturo Bernal commented on HTTPCLIENT-2342:
-------------------------------------------

Hi [~ctabin] 

I ran a test with {{HttpClient 5.4}} and was able to observe the 
{{Content-Type}} header being returned correctly in the response, as 
demonstrated by the following example:
{code:java}
Accept-Ranges: bytes
Age: 61964
Cache-Control: max-age=604800
Content-Type: text/html; charset=UTF-8
Date: Fri, 20 Sep 2024 11:54:59 GMT
Etag: "3147526947"
Expires: Fri, 27 Sep 2024 11:54:59 GMT
Last-Modified: Thu, 17 Oct 2019 07:18:26 GMT
Server: ECAcc (dcd/7D24)
Vary: Accept-Encoding
X-Cache: HIT
 {code}
 

 
{code:java}
 try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
        final HttpGet request = new HttpGet("https://example.com";);

        try (CloseableHttpResponse response = httpClient.execute(request)) {
            for (final Header header : response.getHeaders()) {
                System.out.println(header.getName() + ": " + header.getValue());
            }
            final Header contentType = response.getFirstHeader("Content-Type");
            if (contentType != null) {
                System.out.println("Content-Type found: " + 
contentType.getValue());
            } else {
                System.out.println("Content-Type header is missing!");
            }
        }
    }
}{code}

> Regression: Content-Type header not returned anymore
> ----------------------------------------------------
>
>                 Key: HTTPCLIENT-2342
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2342
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient (classic)
>    Affects Versions: 5.4-beta1
>            Reporter: Cedric Tabin
>            Priority: Major
>
> Hello,
> We just upgraded today to httpclient5 version 5.4. It seems that the header 
> `Content-Type` is not returned anymore by the API, even when listing all the 
> headers.
> {code:java}
> client.execute(httpRequest, r -> {
>     //does not print Content-Type header 
>     for(Header h : r.getHeaders()) {
>         System.out.println("## "+h.getName()+": "+h.getValue());
>     }
>     System.out.flush();
>     return null;
> });
> {code}
> We can ensure that the `Content-Type` header is well set by the server by 
> browsing to the same URL and inspecting the network.
> Our code didn't change and with the version 5.3.1, the Content-Type is 
> correctly received.



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