supermanwave The following error is given by Flarum when loading Flarum into an <iframe>: Something went wrong while trying to load the full version of this site. Try hard-refreshing this page to fix the error.
clarkwinkelmann supermanwave check your browser console for errors. It might be a javascript, cross-origin or frames policy issue. If there's nothing there, maybe it's a Flarum 500 error. In which case you should check the log files at <flarum>/storage/logs.
supermanwave The error in the browser console is: `SecurityError: The operation is insecure. forum-1c9fba11.js:52 t Pane.js:31:4 flarum.core</ue</n.mount ForumApplication.js:95:16 flarum.core</J</e.boot Application.js:137:4 <anonymous>
[deleted] supermanwave You'd typically see that message (I think) if you are trying to load insecure (non-HTTPS) content into a secure site and vice-versa.
supermanwave The above error was particular to the browser because when opened in another one, Flarum correctly loaded in the <iframe>. Solved.