Web Content Field - would be more useful if there was interface-level visibility into the occurence of URL changes (via clicks and/or redirects)

Use case example: an integration I'm using performs a mandatory and hard-to-control internal redirect on the contents of the Web Content Field when the user is done a particular action, and the redirected location shows them misleading information (i.e. it tells them they can close their window, when that is absolutely not the case).

It would be great (and save me a bunch of current headaches) if there was at least some method of monitoring the current URL being pointed to by the field so the parent form could take various actions, such as data refreshes, validations of completion, and/or displaying some alternative box/section/form when the current URL has changed (etc). Currently I see no way of doing this, even using known workarounds.