I have a Webform (6.x) with style Cards, and Ajax.

I would like the users to be able to personalize the message shown as confirmation of the form, with paragraphs and the like.

With a regular webform we have implemented a custom handler with a redirect to a node. With the Cards/Ajax it would be interesting to show the content of that node (configured in the handler) as a confirmation message.

Any suggestion on how we could, from a custom handler, I guess that with the confirmForm function, "catch and replace" the confirmation message?

1 Answer 1


I have found the solution myself after debugging. Leaving it here for further reference: based on https://git.drupalcode.org/project/webform/-/blob/6.1.x/src/Plugin/WebformHandlerBase.php#L607

public function preprocessConfirmation(array &$variables) {}

Implementing this we can easily modify the message as a simple "markup" element in

  • It works is most cases except when I've to show message in modal dialog box.
    – Sharique
    Dec 8, 2022 at 15:05

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