Hello,
I installed Flarum today. I followed the steps for a Nginx install, I turned debug on, PHP 7.0, etc. If I try to do pretty much anything at all I get the error from the title. I click on debug and it just says 200 Ok and then no errors in the rest of the display. Just what you see below (it goes on for the rest of the page, but it is just normal with no errors all the way down to the closing tags). I can't really do anything. If I try to post, view my profile, etc it gives the error telling me to reload.
Any ideas? I cleared the php cache, I checked file / folder permissions and also ownership. With http I get 200 ok, with http2 I get just 200.
POST https://<myurl>/forum//api/discussions
<!DOCTYPE html>
<html lang="en-US" class="no-js no-svg">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="profile" href="http://gmpg.org/xfn/11">
<script>(function(html){html.className = html.className.replace(/\bno-js\b/,'js')})(document.documentElement);</script>