WordPress Customizer Doesn’t Work When Webcomic is Enabled

I haven’t tested it with all of those plugins yet, but a fresh install of WP 5.7.1, Blocksy, and Webcomic 5.0.6 doesn’t seem to cause any issues with the customizer (serving with Apache on a Linux VM using PHP 7.3). It’s possible some combination of those plugins and Webcomic is conflicting, though, which might still point to a Webcomic issue. I’ll post again if I can figure out what combination is causing the problem.

@mgsisk Thanks for getting back to me! I’ll be running diagnostics as well to see what can be done on my end. I really appreciate you helping out with that!

I’m also having this issue – although overlaps would be Age Gate, and Jetpack for the site I was running it on. It wasn’t a clean install but deactivating everything BUT Webcomic still causes Composer to stop loading. Not sure if that helps much but I’m very much keen to keep an eye on this one because I don’t really like any of the other options for webcomic CMSs right now!

I was having the same error, what I found was that when I add a background image on my theme (ePorfolio) the customizer would break if the webcomics plugin enabled. my image is a png so maybe the file format is the issue but not sure.

I am also experiencing this issue with all themes I’ve tested except the WP defaults. Considering that the output of this plugin is initially configured via the Customizer, it’s a pretty big concern.

This is the PHP error I get when I change the background image and causes the customizer to break.

[22-Jun-2021 18:48:02 UTC] PHP Warning:  Invalid argument supplied for foreach() in C:\wamp64\www\wordpress\wp-content\plugins\webcomic\lib\collection\media.php on line 190
[22-Jun-2021 18:48:02 UTC] PHP Stack trace:
[22-Jun-2021 18:48:02 UTC] PHP   1. {main}() C:\wamp64\www\wordpress\wp-admin\customize.php:0
[22-Jun-2021 18:48:02 UTC] PHP   2. do_action() C:\wamp64\www\wordpress\wp-admin\customize.php:281
[22-Jun-2021 18:48:02 UTC] PHP   3. WP_Hook->do_action() C:\wamp64\www\wordpress\wp-includes\plugin.php:484
[22-Jun-2021 18:48:02 UTC] PHP   4. WP_Hook->apply_filters() C:\wamp64\www\wordpress\wp-includes\class-wp-hook.php:316
[22-Jun-2021 18:48:02 UTC] PHP   5. WP_Customize_Manager->customize_pane_settings() C:\wamp64\www\wordpress\wp-includes\class-wp-hook.php:292
[22-Jun-2021 18:48:02 UTC] PHP   6. WP_Customize_Background_Image_Control->json() C:\wamp64\www\wordpress\wp-includes\class-wp-customize-manager.php:4969
[22-Jun-2021 18:48:02 UTC] PHP   7. WP_Customize_Background_Image_Control->to_json() C:\wamp64\www\wordpress\wp-includes\class-wp-customize-control.php:336
[22-Jun-2021 18:48:02 UTC] PHP   8. wp_prepare_attachment_for_js() C:\wamp64\www\wordpress\wp-includes\customize\class-wp-customize-upload-control.php:61
[22-Jun-2021 18:48:02 UTC] PHP   9. get_media_states() C:\wamp64\www\wordpress\wp-includes\media.php:4126
[22-Jun-2021 18:48:02 UTC] PHP  10. apply_filters() C:\wamp64\www\wordpress\wp-admin\includes\template.php:2348
[22-Jun-2021 18:48:02 UTC] PHP  11. WP_Hook->apply_filters() C:\wamp64\www\wordpress\wp-includes\plugin.php:212
[22-Jun-2021 18:48:02 UTC] PHP  12. Mgsisk\Webcomic\Collection\hook_add_post_media_states() C:\wamp64\www\wordpress\wp-includes\class-wp-hook.php:294
[22-Jun-2021 18:48:02 UTC] PHP Warning:  array_unique() expects parameter 1 to be array, bool given in C:\wamp64\www\wordpress\wp-content\plugins\webcomic\lib\collection\settings\general.php on line 329
[22-Jun-2021 18:48:02 UTC] PHP Stack trace:
[22-Jun-2021 18:48:02 UTC] PHP   1. {main}() C:\wamp64\www\wordpress\wp-admin\customize.php:0
[22-Jun-2021 18:48:02 UTC] PHP   2. do_action() C:\wamp64\www\wordpress\wp-admin\customize.php:281
[22-Jun-2021 18:48:02 UTC] PHP   3. WP_Hook->do_action() C:\wamp64\www\wordpress\wp-includes\plugin.php:484
[22-Jun-2021 18:48:02 UTC] PHP   4. WP_Hook->apply_filters() C:\wamp64\www\wordpress\wp-includes\class-wp-hook.php:316
[22-Jun-2021 18:48:02 UTC] PHP   5. WP_Customize_Manager->customize_pane_settings() C:\wamp64\www\wordpress\wp-includes\class-wp-hook.php:292
[22-Jun-2021 18:48:02 UTC] PHP   6. WP_Customize_Background_Image_Control->json() C:\wamp64\www\wordpress\wp-includes\class-wp-customize-manager.php:4969
[22-Jun-2021 18:48:02 UTC] PHP   7. WP_Customize_Background_Image_Control->to_json() C:\wamp64\www\wordpress\wp-includes\class-wp-customize-control.php:336
[22-Jun-2021 18:48:02 UTC] PHP   8. wp_prepare_attachment_for_js() C:\wamp64\www\wordpress\wp-includes\customize\class-wp-customize-upload-control.php:61
[22-Jun-2021 18:48:02 UTC] PHP   9. get_media_states() C:\wamp64\www\wordpress\wp-includes\media.php:4126
[22-Jun-2021 18:48:02 UTC] PHP  10. apply_filters() C:\wamp64\www\wordpress\wp-admin\includes\template.php:2348
[22-Jun-2021 18:48:02 UTC] PHP  11. WP_Hook->apply_filters() C:\wamp64\www\wordpress\wp-includes\plugin.php:212
[22-Jun-2021 18:48:02 UTC] PHP  12. Mgsisk\Webcomic\Collection\Settings\hook_add_collection_media_state() C:\wamp64\www\wordpress\wp-includes\class-wp-hook.php:294
[22-Jun-2021 18:48:02 UTC] PHP  13. array_unique() C:\wamp64\www\wordpress\wp-content\plugins\webcomic\lib\collection\settings\general.php:329

I was able to fix this issue by commenting on a section of a function on the general.php under lib\collection\settings\general.php.

function general() {
	add_filter( 'admin_init', __NAMESPACE__ . '\hook_add_section_general' );
	add_filter( 'admin_init', __NAMESPACE__ . '\hook_add_field_name' );
	add_filter( 'admin_init', __NAMESPACE__ . '\hook_add_field_slug' );
	add_filter( 'admin_init', __NAMESPACE__ . '\hook_add_field_permalink' );
	add_filter( 'admin_init', __NAMESPACE__ . '\hook_add_field_description' );
	add_filter( 'admin_init', __NAMESPACE__ . '\hook_add_field_media' );
	add_filter( 'admin_init', __NAMESPACE__ . '\hook_add_field_archive' );
	add_filter( 'admin_init', __NAMESPACE__ . '\hook_add_field_syndicate' );
	add_filter( 'admin_init', __NAMESPACE__ . '\hook_add_field_supports' );
	add_filter( 'admin_head', __NAMESPACE__ . '\hook_add_help_general' );
	add_filter( 'current_screen', __NAMESPACE__ . '\hook_enqueue_media_manager' );
	add_filter( 'delete_attachment', __NAMESPACE__ . '\hook_delete_collection_media' );
/**	add_filter( 'display_media_states', __NAMESPACE__ . '\hook_add_collection_media_state' );  */

And adding an array verification if statement into the next function inside de media.php on \lib\collection\media.php

function hook_add_post_media_states( array $states ) : array {
	$comics = get_post_meta( get_the_ID(), 'webcomic_post' );
		if (is_array($comics) || is_object($comics))
		{
		foreach ( $comics as $comic ) {
			$collection = get_post_type( $comic );

			if ( isset( $states[ $collection ] ) ) {
				continue;
			} elseif ( ! webcomic_collection_exists( $collection ) ) {
				delete_post_meta( get_the_ID(), 'webcomic_post', $comic );

				continue;
			}

			// Translators: Post type name.
			$states[ $collection ] = sprintf( __( '%s Comic Image', 'webcomic' ), webcomic( "option.{$collection}.name" ) );
			}
		}
	return $states;
}

Now I’m sure the function modification will not break anything but I’m not sure what will happen with commenting on the argument on the first general.php part.

Never mind, this broke the links for the comics, do the function for checking for array is working nice

Thank you for posting the error @mylittlepangreas; I’ll see if I can troubleshoot this and get a patch released.

So the customizer also broke for me and I wanted to post what fixed it in case anyone has a similar situation. I was using Generatepress and Webcomic together on a Flywheel Local install to test out how to use them togeter for a client. Sometime while I was testing out different layouts I noticed my Customizer wasn’t working anymore. I’d load up the page and all I’d see is the name of the site and no options.

I tried everything:

– Turned off themes, plugins. Even deleted webcomic and reinstalled.
– Swapped themes (weird exception the old Comicpress theme I was converting)
– Deleted cache, adjusted my php version/memory limit
– Turning on WP_DEBUG did not post any error on screen or generate a log

Nothing worked. But what did fix it was using this tool WordPress linked to in their guide on tracking errors.

In particular, it was this line of code in my wp-config file:
@ini_set(‘display_errors’, 0);

Weirdly, I can now see my customizer again. I did turn on the debug bar and took screenshots of everything I saw in case this helps someone. I’ll link to it here in a zip file.

Anyways, I hope this post helps someone in the future!

@mgsisk
My friend and I are experiencing the same issue on our website. With a site background image enabled, we get multiple errors when trying to Customize Appearance, and without one the Customization works fine. I’m going to be trying some of the solutions listed above, but an official patch would be appreciated!

Hi, this problem is still present. No word on if it will be fixed?
The plugin is basically non-functional this way.

Issue thread on the official Git archive:

https://github.com/mgsisk/webcomic/issues/372

I figure a fix is more likely to be posted there than here, so it was worth dropping a link.