[wp-trac] [WordPress Trac] #45190: Blank screen for WP 5.0 beta on a web host with a Mod_Security conflict

[WordPress Trac]

#45190: Blank screen for WP 5.0 beta on a web host with a Mod_Security conflict
--------------------------+---------------------
 Reporter:  designsimply  |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  5.0
Component:  Editor        |     Version:
 Severity:  normal        |  Resolution:
 Keywords:  dev-feedback  |     Focuses:
--------------------------+---------------------

Comment (by michelwppi):

 Hi, I observe similar blank screen when trying to edit (normal) a post
 edited previously with gutenberg. Please find error and line in javascript
 log (post.php) of my Safari (test with WP beta3-43876 on a clean install
 on MAMP)

 TypeError: undefined is not an object (evaluating
 'window._wpLoadBlockEditor.then')

 <script type='text/javascript'>
 window._wpLoadBlockEditor.then( function() {
                 wp.data.dispatch( 'core/edit-post'
 ).setAvailableMetaBoxesPerLocation( {"side":[],"normal":[],"advanced":[]}
 );
         } );
 </script>
 Cheers,

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/45190#comment:5>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform