I had the same problem and it was solved by following an advice found on https://wordpress.org/support/topic/visual-editor-missing-15/ Go to the file wp-config.php Find the following line: define(‘DB_HOST’, ‘xxxxxxxxxxxx’); Right below the above line add this: define(‘CONCATENATE_SCRIPTS’, false);
First things first, modifying core files is extremely frowned upon you will have to make these changes with every upgrade and they can lead to security and other problems. I’m pretty sure there is a plugin that will allow this. I did a simple search and here are a few to try: http://wordpress.org/extend/plugins/preserved-html-editor-markup/ http://wordpress.org/extend/plugins/ultimate-tinymce/
Perhaps obvious- you’ve put the URL in the “visual” tab of the editor. Check the “Text” tab and ensure that this isn’t wrapping your URL with paragaraph tags and therefore outputting the URL as text. For simplicity, I would turn the “Video Content” meta box into a regular text field. Hope that helps!
Edit As of WP 4.3 this won’t work anymore. WP have completely removed the javascript for the old distraction-free mode. To use this in 4.3 versions, get a copy of javascript file from WP 4.2 release and enqueue it before using code below. You can: use ‘wp_editor_settings’ filter to set the ‘_content_editor_dfw’ option to false. … Read more
similar to the answer by GavinR, using the wordpress add_editor_style() function; (as implemented in Twenty Ten and Twenty Eleven) in functions.php of your theme, add: add_editor_style(); then create an editor-style.css in your theme folder: .mceContentBody.wp-editor { background-color: #000; color: #fff; }
This almost certainly happens because WordPress cannot load the TinyMCE editor files or the TinyMCE javascript code could not be run. Try these things: 1) Make sure your browser has javascript enabled! 2) Open this URL in your browser http://<yoursite>/wp-includes/js/tinymce/wp-tinymce.php You should see a lot of text, starting something like this: // 4.0.21.1 (2014-04-09) !function(e,t){“use … Read more
So, I may or may not go to hell for this, but I made a quickfix plugin that bypasses the inline part and just opens the link editor. You can find it here. I didn’t spend much time testing it, if you find problems make issues in github and I will see if I can … Read more