See JENKINS-70906. Jenkins core currently uses Prototype 1.7, released on November 15, 2010. The latest version is Prototype 1.7.3, released on September 22, 2015. When an attempt was made to upgrade to 1.7.3 in 2018 in JENKINS-49319, the change had to be reverted. Since this library has been unmaintained for the past 8 years, this PR removes any usages of it in favor of native JavaScript APIs. To test this, I installed this plugin on a custom build of Jenkins that had Prototype ripped out (a local project branch), clicked on the help button for Time-out strategy, and verified that the changed lines were executed correctly in my browser's JavaScript debugger.
See JENKINS-70906. Jenkins core currently uses Prototype 1.7, released on November 15, 2010. The latest version is Prototype 1.7.3, released on September 22, 2015. When an attempt was made to upgrade to 1.7.3 in 2018 in JENKINS-49319, the change had to be reverted. Since this library has been unmaintained for the past 8 years, this PR removes any usages of it in favor of native JavaScript APIs. To test this, I installed this plugin on a custom build of Jenkins that had Prototype ripped out (a local project branch), clicked on the help button for Time-out strategy, and verified that the changed lines were executed correctly in my browser's JavaScript debugger.