[wp-trac] [WordPress Trac] #64403: wp-auth-check.min.js: TypeError: h is undefined

[WordPress Trac]

#64403: wp-auth-check.min.js: TypeError: h is undefined
--------------------------+-----------------------------------------
 Reporter:  ArtZ91        |       Owner:  (none)
     Type:  defect (bug)  |      Status:  reopened
 Priority:  normal        |   Milestone:  7.0
Component:  General       |     Version:  3.6
 Severity:  normal        |  Resolution:
 Keywords:  needs-patch   |     Focuses:  javascript, administration
--------------------------+-----------------------------------------
Changes (by westonruter):

 * keywords:  reporter-feedback => needs-patch
 * status:  closed => reopened
 * version:   => 3.6
 * resolution:  worksforme =>
 * milestone:   => 7.0


Comment:

 OK, I'm able to reproduce the issue, although not with the patch in
 [comment:4].

 This plugin re-creates the scenario:

 {{{#!php
 <?php
 <?php
 /**
  * Plugin Name: Try Early Heartbeat Tick
  */

 add_action(
         'admin_enqueue_scripts',
         static function () {
                 wp_add_inline_script(
                         'wp-auth-check',
                         'jQuery( document ).trigger( "heartbeat-tick", {
 "wp-auth-check": false } );'
                 );
         }
 );
 }}}


 The issue is that the `heartbeat-tick` event may fire on the document
 ''before'' the `DOMContentLoad` event fires. This means that the code that
 sets the `wrap` variable may in fact run ''after'' the event handler for
 the `heartbeat-tick` event.

 It looks like this was introduced a long time ago, in [23805] for #23295
 with a refresh in [50547] which doesn't seem to have changed the
 underlying problem.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/64403#comment:5>
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