Plugin looks very handy. But when I used it all the non-english symbols on a page turned into “????” after saving the page.

Pity, it is not maintained now.

Hi Ronald (@murgroland)

Sometimes I get this error when I’m saving a page

Warning: DOMDocument::loadHTML(): htmlParseEntityRef: no name in Entity, line: 31 in /home/www/wpunderviser.dk/wp-content/plugins/wp-shortcode-highlighter/wp-shortcode-highlighter.php on line 67

Warning: Cannot modify header information - headers already sent by (output started at /home/www/domain.comk/wp-content/plugins/wp-shortcode-highlighter/wp-shortcode-highlighter.php:67) in /home/www/domain.com/wp-admin/post.php on line 197

Warning: Cannot modify header information - headers already sent by (output started at /home/www/domain.com/wp-content/plugins/wp-shortcode-highlighter/wp-shortcode-highlighter.php:67) in /home/www/wpunderviser.dk/wp-includes/pluggable.php on line 1195

If I reload the page the warning dissapear again

//Lars, Copenhagen

When running WordPress in Vagrants I’m getting an error which prevents custom styling of the shortcodes. The shortcodes get a black/white styling. The error in the console is:

Failed to load resource: the server responded with a status of 404 (Not Found)
https://dev.example.com/wp-admin/admin-ajax.php/?action=wpsh_dynamic_styles&wp-mce-4403-20160901

I have been looking for something like this for a long time, your plugin is really useful and works nicely with standard shortcodes. However, it fails to highlight shortcodes with placeholders, like %(% for < and others. Is there a workaround for this?
Thanks for a great and much needed plugin!