Great, thanks!
Finally, due to the other plugin I am working on, I actually need to also allow script and and link elements as well. I need some javascript to run on my posts, and it seems like if I add it to the head through Custom it only loads on posts when I refresh the page.
Anyways, would whitelisting those two work similarly?
The code I need to add looks like this:
<!-- Styles for the Mermaid (Flowchart) Plugin -->
<link rel="stylesheet" type="text/css" href="https://a1b162c9ba316380004223e5ebcd9fd144cbffea.googledrive.com/host/0B94LsQPLeilLfkxHY3djaE53TkEwcUZfbVY1MkxTa3Bpb25aclNhLWUzV2dLeEt4VlVFcWM/mermaid.min.css">
<!-- Custom Code to Remove <br> Tags from Mermaid (Flowchart) Posts -->
<script src="https://a1b162c9ba316380004223e5ebcd9fd144cbffea.googledrive.com/host/0B94LsQPLeilLfkxHY3djaE53TkEwcUZfbVY1MkxTa3Bpb25aclNhLWUzV2dLeEt4VlVFcWM/remove.mermaid.div.js"></script>
<!-- Code for the Mermaid (Flowchart) Plugin -->
<script src="https://a1b162c9ba316380004223e5ebcd9fd144cbffea.googledrive.com/host/0B94LsQPLeilLfkxHY3djaE53TkEwcUZfbVY1MkxTa3Bpb25aclNhLWUzV2dLeEt4VlVFcWM/mermaid.min.js"></script>
<!-- Code to Initialize the Mermaid (Flowchart) Plugin -->
<script>mermaid.initialize({startOnLoad:true});</script>