[JENKINS-65555] Plugin does not work with withCredentials

When I am using the plugin like below, it works fine:

httpRequest customHeaders: [[name: 'Authorization', value: "Token harcodedtokenvaluehere"], [name: 'accept', value: "application/vnd.github.v3+json"]], httpMode: 'POST', requestBody: '{"head":"head","base":"base"}', url: "myurl"

But when I try to use withCredentials to pass Token value through Jenkins credentials, job fails with Response Code: HTTP/1.1 401 Unauthorized.

withCredentials([string(credentialsId: 'githubToken', variable: 'TOKEN')]) {

   httpRequest customHeaders: [[name: 'Authorization', value: "Token %TOKEN%"], [name: 'accept', value: "application/vnd.github.v3+json"]], httpMode: 'POST', requestBody: '

{"head":"head","base":"base"}

', url: "myurl"

}

---
Originally reported by richmond, imported from: Plugin does not work with withCredentials

• assignee: janario
  
• status: Open
  
• priority: Major
  
• component(s): http-request-plugin
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 3
  
• imported: 20260702-081740
  

Raw content of original issue

When I am using the plugin like below, it works fine:


httpRequest customHeaders: [[name: 'Authorization', value: "Token harcodedtokenvaluehere"], [name: 'accept', value: "application/vnd.github.v3+json"]], httpMode: 'POST', requestBody: '{"head":"head","base":"base"}', url: "myurl"


But when I try to use withCredentials to pass Token value through Jenkins credentials, job fails with Response Code: HTTP/1.1 401 Unauthorized.


withCredentials([string(credentialsId: 'githubToken', variable: 'TOKEN')]) { 


   httpRequest customHeaders: [[name: 'Authorization', value: "Token %TOKEN%"], [name: 'accept', value: "application/vnd.github.v3+json"]], httpMode: 'POST', requestBody: '


{"head":"head","base":"base"}

', url: "myurl"


}

environment

```
Http Request plugin v1.9.0

Jenkins 2.277.3
```