I installed MathJax on my forum, but there is a problem. When previewing and adding posts, the forum does not generate a formula but shows only the code. The formula appears only after reloading the page with the code placed in the message.
How to make sure that when you preview and add a message a formula is generated right away? An example of what I need is on this forum - https://www.physicsforums.com/threads/universe-geometry-article.694499/