No valid crumb was included in the request - Jenkins on Windows

Question

I installed Jenkins 2.46.2 on Windows Server 2012 and integrated it with GitBucket.

I am trying the trigger the build when a change is pushed to GitBucket.

I tried to add a webhook but I get this error:

Error 403 No valid crumb was included in the request

HTTP ERROR 403

Problem accessing /jenkins/gitbucket-webhook/. Reason:

 No valid crumb was included
in the request

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Answer 1

This worked for me:

obtain crumb

$ wget -q --auth-no-challenge --user yourUserName --password yourPassword--output-document - 'http://myJenkins:8080/crumbIssuer/api/xml?xpath=concat(//crumbRequestField,":",//crumb)'

Now Run Jenkins Job

$ curl -I -X POST http://yourUserName:yourPassword@myJenkins:8080/job/JOBName/build -H "Jenkins-Crumb:44e7038af70da95a47403c3bed5q10f8"

HTTP/1.1 201 Created Date: Fri, 28 July 2017 09:15:45 GMT X-Content-Type-Options: nosniff Location: http://myJenkins:8080/queue/item/17/ Content-Length: 0

Answer 2

For me the problem was that I left the jenkins window unattended for some time. Once I navigated to the jenkins root I was prompted to sign in again and was able to configure the job with git. I also enabled AUTO REFRESH in jenkins which will likely prevent this in the future.