Editor Scroll issue when no block patterns are defined

[fabiankaegy]

Describe the bug
When removing the theme support for 'core-block-patterns' remove_theme_support( 'core-block-patterns' ); and not having any custom Block Patterns the editor scrolls past the content area into a white void.

To reproduce
Steps to reproduce the behavior:
add remove_theme_support( 'core-block-patterns' ); to a theme.
make sure no other patterns are there
navigate to the editor
scroll down and see the overflow.

Editor version (please complete the following information):

• WordPress version: 5.3.2
• Does the website has Gutenberg plugin installed, or is it using the block editor that comes by default? no plugin

Desktop (please complete the following information):

• OS: macOS 10.15.7
• Browser Safari
• Version 14.0

[skorasaurus]

Hi,
Thanks for reporting.

I'm unable to reproduce this as shown in the video. https://f002.backblazeb2.com/file/cpl-public/tech-devel/2020-12-31-gb-26688.ogv
(this is using wordpress 5.6, gutenberg 9.6.2.)

Could you verify this is still an issue for you using the latest version of WordPress as well as installing and activating the Gutenberg plugin?

[fabiankaegy]

@skorasaurus I just tested it with a clean new wordpress install that has no plugins installed, runs WordPress 5.6 and has a custom theme that does nothing expect remove_theme_support( 'core-block-pattern' ).

Screen.Recording.2020-12-31.at.17.04.33.mov

functions.php

<?php

add_action( 'after_setup_theme', function() {
    remove_theme_support( 'core-block-patterns' );
} );

index.php

style.css

/**
 * Theme Name:  example
 * Description: The only thing this plugin does is remove_theme_support( 'core-block-patterns' )
 * Author:      fabiankaegy
 * Version:     1.0.0
 * Tags:
 * Text Domain: example
 */

Here is all of the site info:

` ### wp-core ###

version: 5.6
site_language: en_US
user_language: en_US
timezone: +00:00
permalink: undefined
https_status: false
multisite: false
user_registration: 0
blog_public: 1
default_comment_status: open
environment_type: production
user_count: 1
dotorg_communication: true

wp-paths-sizes

wordpress_path: /var/www/html
wordpress_size: 43.22 MB (45321076 bytes)
uploads_path: /var/www/html/wp-content/uploads
uploads_size: 0.00 B (0 bytes)
themes_path: /var/www/html/wp-content/themes
themes_size: 348.00 B (348 bytes)
plugins_path: /var/www/html/wp-content/plugins
plugins_size: 28.00 B (28 bytes)
database_size: 2.13 MB (2228224 bytes)
total_size: 45.35 MB (47549676 bytes)

wp-active-theme

name: example (demo)
version: 1.0.0
author: fabiankaegy
author_website: (undefined)
parent_theme: none
theme_features: undefined
theme_path: /var/www/html/wp-content/themes/demo
auto_update: Disabled

wp-media

image_editor: WP_Image_Editor_Imagick
imagick_module_version: 1690
imagemagick_version: ImageMagick 6.9.10-23 Q16 x86_64 20190101 https://imagemagick.org
file_uploads: File uploads is turned off
post_max_size: 8M
upload_max_filesize: 2M
max_effective_size: 2 MB
max_file_uploads: 20
imagick_limits:
imagick::RESOURCETYPE_AREA: 122 MB
imagick::RESOURCETYPE_DISK: 1073741824
imagick::RESOURCETYPE_FILE: 786432
imagick::RESOURCETYPE_MAP: 512 MB
imagick::RESOURCETYPE_MEMORY: 256 MB
imagick::RESOURCETYPE_THREAD: 8
gd_version: bundled (2.1.0 compatible)
ghostscript_version: 9.27

wp-server

server_architecture: Linux 4.19.121-linuxkit x86_64
httpd_software: Apache/2.4.38 (Debian)
php_version: 7.4.13 64bit
php_sapi: apache2handler
max_input_variables: 1000
time_limit: 30
memory_limit: 128M
admin_memory_limit: 256M
max_input_time: -1
upload_max_filesize: 2M
php_post_max_size: 8M
curl_version: 7.64.0 OpenSSL/1.1.1d
suhosin: false
imagick_availability: true
pretty_permalinks: true
htaccess_extra_rules: false

wp-database

extension: mysqli
server_version: 10.5.8-MariaDB-1:10.5.8+maria~focal
client_version: mysqlnd 7.4.13

wp-constants

WP_HOME: http://localhost:8888/
WP_SITEURL: http://localhost:8888/
WP_CONTENT_DIR: /var/www/html/wp-content
WP_PLUGIN_DIR: /var/www/html/wp-content/plugins
WP_MAX_MEMORY_LIMIT: 256M
WP_DEBUG: true
WP_DEBUG_DISPLAY: true
WP_DEBUG_LOG: false
SCRIPT_DEBUG: true
WP_CACHE: false
CONCATENATE_SCRIPTS: undefined
COMPRESS_SCRIPTS: undefined
COMPRESS_CSS: undefined
WP_LOCAL_DEV: undefined
DB_CHARSET: utf8
DB_COLLATE: undefined

wp-filesystem

wordpress: writable
wp-content: writable
uploads: writable
plugins: writable
themes: writable

`

[skorasaurus]

Thanks for all of the details and the theme, I've duplicated your theme and I'm still not able to reproduce (using gutenberg 9.8.1); perhaps this is a browser issue exclusive to safari? Could you test on another browser? (I only have access to chrome, firefox).

[fabiankaegy]

I have just tested this again on Chrome and on Firefox and it appears on both like I showed in the video.

I am however like mentioned in the previous comment using core. So no Gutenberg plugin.

[skorasaurus]

Thanks for the clarification on the plugin, I missed that earlier, silly me. I still can't reproduce it, even when disabling gutenberg plugin; I'm using a vanilla site - just recreated my db and install; and used your theme. Unfortunately, i can't spend any more time on this today.

[fabiankaegy]

I am no longer able to replicate this in Gutenberg 13.0 :)