[JENKINS-47356] A Content-Type header is sent by default with DELETE requests

The following code:

node {

    httpRequest url: 'http://localhost:8666',

        httpMode: 'DELETE',

                requestBody: null,

        acceptType: 'NOT_SET',

        contentType: 'NOT_SET',

        customHeaders: [[name: 'Authorization', value: 'dummy=']],

        ignoreSslErrors: true,

        validResponseCodes: '100:600'

}

produces the following request:

DELETE / HTTP/1.1

Authorization: dummy=

Content-Length: 0

Content-Type: application/x-www-form-urlencoded

Host: localhost:8666

Connection: Keep-Alive

User-Agent: Apache-HttpClient/4.5.3 (Java/1.8.0_91)

Accept-Encoding: gzip,deflate

While the same with a GET:

node {

    httpRequest url: 'http://localhost:8666',

        httpMode: 'GET',

        requestBody: null,

        acceptType: 'NOT_SET',

        contentType: 'NOT_SET',

        customHeaders: [[name: 'Authorization', value: 'dummy=']],

        ignoreSslErrors: true,

        validResponseCodes: '100:600'

}

produces:

GET / HTTP/1.1

Authorization: dummy=

Host: localhost:8666

Connection: Keep-Alive

User-Agent: Apache-HttpClient/4.5.3 (Java/1.8.0_91)

Accept-Encoding: gzip,deflate

 

I couldn't pinpoint exactly what part of the code is responsible from this.

This may or may not be related to https://issues.jenkins-ci.org/browse/JENKINS-40873

This would be solved if this issue was implemented: https://issues.jenkins-ci.org/browse/JENKINS-40043

 

---
Originally reported by lucasc, imported from: A Content-Type header is sent by default with DELETE requests

• assignee: janario
  
• status: Open
  
• priority: Minor
  
• component(s): http-request-plugin
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 1
  
• imported: 20260702-081740
  

Raw content of original issue

The following code:



node {

    httpRequest url: 'http://localhost:8666',

                httpMode: 'DELETE',

                requestBody: null,

                acceptType: 'NOT_SET',

                contentType: 'NOT_SET',

                customHeaders: [[name: 'Authorization', value: 'dummy=']],

                ignoreSslErrors: true,

                validResponseCodes: '100:600'

}



produces the following request:



DELETE / HTTP/1.1

Authorization: dummy=

Content-Length: 0

Content-Type: application/x-www-form-urlencoded

Host: localhost:8666

Connection: Keep-Alive

User-Agent: Apache-HttpClient/4.5.3 (Java/1.8.0_91)

Accept-Encoding: gzip,deflate





While the same with a GET:



node {

    httpRequest url: 'http://localhost:8666',

                httpMode: 'GET',

                requestBody: null,

                acceptType: 'NOT_SET',

                contentType: 'NOT_SET',

                customHeaders: [[name: 'Authorization', value: 'dummy=']],

                ignoreSslErrors: true,

                validResponseCodes: '100:600'

}



produces:



GET / HTTP/1.1

Authorization: dummy=

Host: localhost:8666

Connection: Keep-Alive

User-Agent: Apache-HttpClient/4.5.3 (Java/1.8.0_91)

Accept-Encoding: gzip,deflate





 


I couldn't pinpoint exactly what part of the code is responsible from this.

 This may or may not be related to https://issues.jenkins-ci.org/browse/JENKINS-40873


This would be solved if this issue was implemented: https://issues.jenkins-ci.org/browse/JENKINS-40043


 

• environment: Tested with v1.8.21