Client Script - Validate CI selection via GlideAjax - Pull 1

[hanna-g-sn]

PR Description:

This contribution adds a practical client and server pair. When a requester selects a CI on a catalog item, an onChange client script calls a Script Include via GlideAjax to validate that the CI is active and supported. The script shows a clear message and optionally disables submit when invalid.

Includes README, the Catalog Client Script, and the Script Include.

Pull Request Checklist

Overview

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Code Quality

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[ravichandra1998g]

Hello @hanna-g-sn
Thank you for your efforts in submitting the PR.
We already have several clientscript -> GlideAjax call -> Server side scripts.

There are several ServiceNow community threads too.

So this cannot be merged. At Hactoberfest, we are aiming for high quality contributions. You can see some of the recently merged PRs to know the kind of code snippets we are aiming for.

Please resubmit after making dynamic use cases/contexts that are suitable for Hactoberfest!