Duh! It was a permissions issue: a folder inside the theme folder (containing all the files triggering the 404 errors) was set to 700 instead of 755.
Related Posts:
- Getting a 404 in Debugger for example.com/wp-admin/Array?
- wp-tinymce.php 404
- Adding Custom Text Patterns in the WP 4.5 Visual Editor
- Add custom TinyMCE 4 Button, Usable since WordPress 3.9-beta1
- WordPress Migration: Getting 404 Errors: Only Home Page works
- Forcing reload of editor-style.css
- Add popup window to TinyMCE buttons
- TinyMCE editor is breaking my beautiful HTML
- Can you add the visual editor to the description field for custom taxonomies?
- WordPress Visual Editor Stripping HTML Changes
- External page integrated into WordPress returns a 404 error
- WordPress Theme’s 404.php not found, server defaults to Apache’s own 404 page
- get_the_ID() gives notice in 404 page
- Remove ‘Custom..’ option in tinyMCE colour swatch
- How to replace the content of tinyMCE editor in both text and visual mode using jQuery?
- How to open the 404 page in the Theme Customizer preview?
- wp_editor disable after reaching character count limit
- Tiny MCE editor stripping xlink:href parameter from SVG USE tag
- Shortcode to insert
- How to edit the actual paragraph dropdown in TinyMCE with custom text styles
- Is it possible to create nested lists in the WYSIWYG editor?
- TinyMCE Anchor Button not showing
- How to keep non-breaking spaces in the visual editor?
- Is there a way to prevent the Editor from modifying my HTML
- Remove hidden formatting when user paste text from MS Word into TinyMCE
- Feed 404 Errors
- 404 when fetching image from wp-content/uploads/
- Disable text tab on WordPress text-editor
- Add button in TinyMCE editor to insert text
- Snippet: Use classes instead of inline styles for text alignment
- REST API: No route was found matching the URL and request method
- How to disable TinyMCE 4 keyboard shortcuts
- How to customize the symbols that appear in the Visual Editor insert custom character
- Pasting code into pre-formatted text in Visual Editor not working in 3.3.1
- WordPress REST API 404
- Changing Site Address (URL) causes 404
- Detect 404 before headers are sent
- How can I insert HTML attributes with an existing TinyMCE button?
- In wordpress I am manipulation 404 response. I want to give the response before 404 error is given to google
- 404 error on homepage when using Nginx proxying to Apache
- Add Shortcode inline inside Gutenberg block
- Change padding to text indent in “Increase indent” TinyMCE
- Restrict file uploads by extension?
- How to make WordPress and TinyMCE accept tags wrapping block-level elements as allowed in HTML5?
- Can I remove the Rich Text box editor for a specific post?
- Non “WordPress” pages/code getting 404 error
- 404 error on all pages but homepage
- Where is the best part to hijack or catch a potential 404
- Add visual editor to Media Edit Screen
- page not found in Chrome, but found in Firefox
- Why does my WordPress show a 404 message for 403 forbidden directories?
- Moved to new server, all pages work EXCEPT home page (page not found)
- Making a custom widget that includes a tinymce and works in Site Origin Page Builder
- Visual Editor freezing on text highlight since 4.3
- High CPU usage on 404 errors
- How to fix “failed to set referrer policy: The value ‘ ‘ is not one of…”?
- “Lost password” page triggers 404
- tinyMCE duplicates previous block element when pressing return (visual editor)
- WordPress visual editor broke due to non standard port?
- Customising the WordPress TinyMce editor and it’s buttons
- Add Item to Custom TinyMCE Menu
- Enable Visual Editor In Comments On CPT Edit Page
- Text cut off after the character 𪇆 in TinyMCE
- 404 to 301 – Fixing old links
- Adding image to visual editor popup for shortcode with wp.media and wp.mce: changing image duplicates shortcode
- Change Default Font Size and Remove Unwanted Font Sizes in TinyMCE
- How do I bypass WordPress 404 handling?
- $error = 404 after caught add_rewrite_rule
- TinyMce in WordPress – Getting the “fullscreen” button to stay on the right when customising button layout
- Added custom styles to Visual Editor. Classes are appended and not replaced as intended
- How do I go about fixing this apparently messed up upgrade?
- WordPress “Page not found error” when I edit a page
- Close TinyMCE plugin window on click away
- Preserving tabs and line breaks in when switching from HTML to Visual Editor
- WordPress Stats keeps showing non-existent post as a top post?
- WP Rest API not working
- What does do_action(‘admin_init’); does actually?
- Limiting allowed html elements/strip harmful scripts from editor
- Form in WordPress : 404
- Why is my Javascript console showing a 404 error for a file called “null” on a clean WordPress install?
- Why Runtime service worker (runtime-service-worker.js) is being loaded, but can’t be found?
- Non-existent page returns code 200
- WP is redirecting instead of going to 404
- How to disable formatting
- Add table button in editor without Plugin
- Conditional for 404 page not work
- Make Textarea a TinyMCE (editor box)
- Nginx with WordPress not showing template 404 for certain file types
- post parameter ‘name’ 404 error
- How to have custom tinyMCE buttons break onto next line when too long
- How to get line breaks to translate to paragraphs?
- Getting selected (highlighted) html from the Visual Editor on Edit Post page?
- Intermittently missing pages and posts in WordPress
- Tiny MCE-modifications (plugins) stopped working in WordPress 5.6
- TinyMCE Visual Blocks plugin set Show blocks option for all users
- oEmbed 404 errors when trying to use embed block
- WordPress Admin Not Loading All Core Scripts
- Intercept 404 and try to serve another content if exists?
- 404 after moving localhost wp to server
- Intermittent 404 errors, rewrite rules, and BBPress