contact form 7 plugin Warning: Cannot modify header information – headers already sent by…
I had the same problem with contact form 7.
It was not possible to save the complete changes I made in a contact-form-7 form.
when I clicked on save always the Warning above occours.
I put
<?php ob_start(); ?> on top of page on html/wp-includes/pluggable.php
than it worked properly.
Thank you CMSHelpLIve.
