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I've implemented a custom multistep AJAX form like:

STEP #1 Question 1: A or B (radiobutton Ajaxified) -> AjaxCallback: step + 1

STEP #2 Question 2: C or D (radiobutton Ajaxified) -> AjaxCallback: step + 1;

STEP #3 Question 2: E or F (radiobutton Ajaxified) -> redirect to other page (ajax command)

Everything works as expected but after being redirected to the new page if I click the browser back button in firefox the form shows the first step with the option [A] selected of the first step. This does not happen in Chrome.

I'm running Firefox 54.0.1

Does it make sense to anyone? How could I fix it?

Thanks in advance!

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It seems chrome makes a refresh of the page and firefox a cache. Seeing this question the reasons are answered here

You can try disabling caches using http headers: https://stackoverflow.com/questions/13640109/how-to-prevent-browser-cache-for-php-site

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On Drupal 8, I was having an issue with Firefox that was caching the value of a field, selected by the user before refreshing the page.

It was basically overriding the #default_value of the field.

My solution was to Turn Off Form Autocompletion (https://developer.mozilla.org/en-US/docs/Web/Security/Securing_your_site/Turning_off_form_autocompletion).

You can do it at the level on the input if that's an , but since it was a in my case I had to do it at the form level :

$form['#attributes']['autocomplete'] = 'off';
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  • This also works in Drupal 7 and on individual form elements. Jan 17 '19 at 5:07

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