Wait this is because I’m on a multi-site installation. The unfiltered_html capability is disabled and its functionality only available to the admin account. Your plugin however is still displaying it for authors.
Apparently this is for security reasons, although I don’t understand why, since if a user can already upload and embed images in a post, why can’t they do the same in a comment?
For others trying to use this plugin on a multi-site install, you may find this useful: http://wordpress.stackexchange.com/a/209386/5077.
It requires that you have the bbpress bbcode and bbpress shortcode whitelist plugins installed to work, as it converts disallowed html into bbcodes on posting. The code shown only supports image tags, but it can be expanded…
(@antonchanning)
10 years, 6 months ago
Using my Administrator account, I can see the Add Media button and successfully embed images in my comments.
Using an Author level account, I can see the Add Media button, but when posting the comment, the image and some other html (but not all html) gets stripped from the comment.
https://wordpress.org/plugins/mdc-comment-toolbar/