This change modifies toggle links to use data-post-href initially instead of href. JavaScript now sets the href only when the POST handler is attached, which prevents 404 errors caused by clicking buttons before scripts are fully loaded. It also resolves a Chrome-specific issue where progressive rendering made buttons clickable too early.

In Chrome, toggle collapse buttons (e.g., "Build Executor Status") can trigger 404 errors when clicked immediately
after page load. This happens because Chrome makes the buttons clickable before JavaScript finishes loading, causing GET requests instead of the required POST requests.

fix: Initially rendering links with data-post-href instead of href, making them non-clickable until JavaScript loads and moves the URL to href while attaching the POST handler. This ensures buttons only become clickable when properly configured for POST requests.

Eliminates 404 errors

See JENKINS-76118.

Testing done

Proposed changelog entries

• human-readable text

Proposed changelog category

/label

Proposed upgrade guidelines

N/A

Submitter checklist

• The Jira issue, if it exists, is well-described.
• The changelog entries and upgrade guidelines are appropriate for the audience affected by the change (users or developers, depending on the change) and are in the imperative mood (see examples). Fill in the Proposed upgrade guidelines section only if there are breaking changes or changes that may require extra steps from users during upgrade.
• There is automated testing or an explanation as to why this change has no tests.
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• New or substantially changed JavaScript is not defined inline and does not call eval to ease future introduction of Content Security Policy (CSP) directives (see documentation).
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• For new APIs and extension points, there is a link to at least one consumer.

Desired reviewers

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Before the changes are marked as ready-for-merge:

Maintainer checklist

• There are at least two (2) approvals for the pull request and no outstanding requests for change.
• Conversations in the pull request are over, or it is explicit that a reviewer is not blocking the change.
• Changelog entries in the pull request title and/or Proposed changelog entries are accurate, human-readable, and in the imperative mood.
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