jenkinsci/jenkins

Add an `AbortController` to `FormChecker.delayedCheck`

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#26594 opened on Apr 7, 2026

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 (6 comments) (0 reactions) (0 assignees)Java (25,266 stars) (9,474 forks)batch import
good first issue

Description

What feature do you want to see added?

When doing lots of checkers they are serialised in a queue one by one. If you take an action that invalidates the existing ones you have no way of aborting them.

https://github.com/jenkinsci/jenkins/blob/960dc7d5ace67157d5c7a562601136890760f6e0/war/src/main/webapp/scripts/hudson-behavior.js#L226

e.g. in role strategy I've added a filter. I've added 101 users, if I go to the second page (client side change only), I can't abort the first 100 and have to wait for all 100 requests.

I've worked around by making by own delayed checker: https://github.com/timja/role-strategy-plugin/blob/4323c623be6d7d0eec4ce7528c1da3f8d4adf6e3/src/main/webapp/js/tableManage.js#L462-L510

Upstream changes

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Are you interested in contributing this feature?

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Contributor guide

Tech stack
javascript
Domain
frontend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
JavaScriptAbortController APIAsynchronous programming
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Study the FormChecker.delayedCheck function in hudson behavior.js (line 226 of the linked commit) to understand the current queue mechanism. Review the workaround in role strategy plugin (tableManage.js lines 462-510) which implements a custom delayed checker with abort capability. Design an AbortController integration that allows cancelling pending checks when a user action invalidates them, such as pagination or filtering.