add details and tell jinja that variables have kept themselves safe

files/templates/errors/error.html

@@ -10,12 +10,16 @@
 <div class="row justify-content-center">
 	<div class="col-10 col-md-5">
 	<div class="text-center px-3 my-8">
-			{% if img %}
+			{% if img -%}
 				<img alt=":#{{img}}:" loading="lazy" src="/e/{{img}}.webp">
-			{% endif %}
+			{%- endif %}
 			<pre></pre>
 			<h1 class="h5">{{code}} {{title}}</h1>
-			<p class="text-muted mb-5">{{msg}}</p>
+			<p class="text-muted mb-5">{{msg|safe}}</p>
+			{% if details -%}
+				<blockquote class="error-details">{{details|safe}}</blockquote>
+			{%- endif %}
+			<div><a href="/" class="btn btn-primary">Go to frontpage</a></div>
 		</div>
 	</div>
 </div>