<div style="display: flex; flex-wrap: wrap; white-space: pre-wrap; align-items: center; "><img height="20" width="20" style="border-radius:50%; margin-right: 4px;" decoding="async" src="https://avatars.githubusercontent.com/u/5842757?s=20&v=4" /><strong>mmd-osm</strong> left a comment <a href="https://github.com/openstreetmap/openstreetmap-website/pull/6192#issuecomment-3079760090">(openstreetmap/openstreetmap-website#6192)</a></div>
<p dir="auto">I'm using the code below, which includes <code class="notranslate">Access-Control-Request-Headers: x-csrf-token,x-turbo-request-id</code> in the request.</p>
<p dir="auto">The preflight fails, because we're not allowing these headers:</p>
<p dir="auto">Reason: header ‘x-csrf-token’ is not allowed according to header ‘Access-Control-Allow-Headers’ from CORS preflight response</p>
<pre class="notranslate"><code class="notranslate">diff --git a/app/views/share_panes/show.html.erb b/app/views/share_panes/show.html.erb
index 23f46dc4d..f4ae5ac95 100644
--- a/app/views/share_panes/show.html.erb
+++ b/app/views/share_panes/show.html.erb
@@ -40,7 +40,7 @@
       <% end %>
     </ul>
   </div>
-  <form id="export-image" action="/export/finish" method="post">
+  <form id="export-image" action="/export/finish" method="post" data-turbo="true">
     <div class="row mb-3">
       <label for="mapnik_format" class="col-auto col-form-label"><%= t ".format" %></label>
       <div class="col-auto">
</code></pre>

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