playing around with submission some more

src/lib/components/preview.svelte

@@ -18,10 +18,13 @@
 
   async function performRender(event: MouseEvent) {
     event.preventDefault();
-    const data = new FormData();
-    data.append('markdown', markdown);
-    data.append('stylesheet', stylesheet);
-    console.log(await fetch('/render', { method: 'POST', body: data }));
+    console.log(
+      await fetch('/render', {
+        method: 'POST',
+        body: await output,
+        headers: { 'content-type': 'text/html' },
+      }),
+    );
   }
 </script>
 

src/routes/render/+server.ts

@@ -1,11 +1,16 @@
 import { error, json, type RequestEvent } from '@sveltejs/kit';
 
 export async function POST({ request }: RequestEvent) {
+  if (!(request.headers.get('Content-Type') ?? 'bad').includes('text/html')) {
+    error(400, 'request body not HTML');
+  }
+
   if (!request.body) {
     error(400, 'no body in request');
   }
 
-  console.log(request);
+  const input = await request.text();
+  console.log('received input: ', input);
 
   return json({ msg: 'to be implemented' });
 }