WordPress – Disable “Are you sure you want to navigate away from this page?” when saving custom post

4 comments

1. Ok, so I was able to track down the cause. It is a JS function in ACF called unload.

   All you have to do is add some JS:

   jQuery( document ).ready( function() {
       // disable the ACF js navigate away pop up
       acf.unload.active = false;
   } );
   

   Reference:
   http://support.advancedcustomfields.com/forums/topic/how-to-disable-js-alert-in-acf_form/

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2. A more general answer in regards to WP’s confirmation dialog:

   Within wp-admin/js/post.js of WordPress-4.8 on line 481 you can find the mechanism behind the “navigate away” confirmation dialog.

   The event: beforeunload.edit-post is initiated via jQuery’s .on() function. jQuery gives you the ability to unbind event handlers via the .off() function.

   By adding the following to your Javascript, you can disable this confirmation dialog when needed. WordPress itself also uses it when you hit the submit (Publish) button on a post for example.

   // Prevent WP from asking confirmation to navigate away from the current post.
   jQuery(window).off( 'beforeunload.edit-post' );
   

   P.S. WordPress specific questions should be asked at: https://wordpress.stackexchange.com/

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3. jQuery(document).ready(function()
   {
       jQuery(window).off("beforeunload", null);
   });
   

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4. Still valid on wordpress 5.9
   So, I was trying to track down how WordPress itself handled this.
   Here is what I found out:
   There is an eventListener on publish or edit button of WordPress.
   That actually runs the below code:

   jQuery(window).off("beforeunload.edit-post") 
   

   So, Using the same way you also can disable that.

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