Multisteps form - Browser back button with Chrome - Ajax out of control

You reported a bug for a Webform version that is no longer supported:

No longer supported: Webform 6.1.x (for Drupal 9), Webform 6.0.x (for Drupal 9), Webform 8.x-5.x (for Drupal 8).

The bug will have to be reproduced on a supported release to be fixed.

I was able to reproduce this issue in version 6.2.2. I'll try @kevinsiji 's fix and report back.

I created the above merge request. The infinite loop in attachBehaviors was due to not passing the context and settings parameters to the timeout callback, causing attachBehaviors to be invoked on the document element infinitely.

Tested. This resolves the issue.

The change does not make sense because it triggeing the attachBehaviors immediate by calling the anonymous function with (context, settings);

    // If the back button is pressed, delay Drupal's attaching of behaviors.
    if (backButton) {
      var attachBehaviors = Drupal.attachBehaviors;
      Drupal.attachBehaviors = function (context, settings) {
        setTimeout(function (context, settings) {
          attachBehaviors(context, settings);
        }(context, settings);, 300);
      };
    }

I think the issue is that we want context and settings to be set via a closure and we need to remove the anonymous function's (context, settings) parameters.

    // If the back button is pressed, delay Drupal's attaching of behaviors.
    if (backButton) {
      var attachBehaviors = Drupal.attachBehaviors;
      Drupal.attachBehaviors = function () {
        // Get context and settings via the closure.
        setTimeout(function (context, settings) {
          attachBehaviors(context, settings);
        }, 300);
      };
    }

Please try the attached patch.

The fact that this also fixes 🐛 Duplicate buttons from Dialog UI within Ajax Wizard when using Chrome/Edge browser back button Closed: duplicate makes this fairly safe to merge.

Automatically closed - issue fixed for 2 weeks with no activity.