Github webhook urls not working

Describes the cause and action for error messages.

Error Message(English)：
webhook urls not working

Resolution

Webhooks | GitHub Developer Guide
https://developer.github.com/webhooks/

Github webhook URL config issue? How to fix it? - Stack Overflow
https://stackoverflow.com/questions/42487563/github-webhook-url-config-issue-how-to-fix-it

jenkins github webhook error
https://stackoverflow.com/questions/44727950/jenkins-github-webhook-error

Jenkins auto build by Github webhook is not working
https://stackoverflow.com/questions/40966554/jenkins-auto-build-by-github-webhook-is-not-working

Jenkins-Build when a change is pushed to GitHub option is not ...
https://stackoverflow.com/questions/30576881/jenkins-build-when-a-change-is-pushed-to-github-option-・・・

GitHub hook not working over SSL
https://stackoverflow.com/questions/26303167/github-hook-not-working-over-ssl

GithubからJenkinsへのServer Hook - Qiita
https://qiita.com/mechamogera/items/dbeb3a540f636bfed7af

JenkinsとGitHubのWebhook連携の整理 Aiming 開発者ブログ
https://developer.aiming-inc.com/infra/jenkins-github-webhook-collaboration/

Jenkins と GitHub を ...
https://developer.aiming-inc.com/infra/jenkins-github-webhook-collaboration/#outline__3