fix upstream

id.saladeaula.digital/client/app/routes/upstream.ts

@@ -7,14 +7,24 @@ async function proxy({
   request,
   context
 }: Route.ActionArgs): Promise<Response> {
-  const url = new URL(request.url)
-  const issuerUrl = new URL(url.pathname, context.cloudflare.env.ISSUER_URL)
-  const response = await fetch(issuerUrl.toString(), {
+  const pathname = new URL(request.url).pathname
+  const url = new URL(pathname, context.cloudflare.env.ISSUER_URL)
+  const headers = new Headers(request.headers)
+  const response = await fetch(url.toString(), {
     method: request.method,
-    headers: request.headers
+    headers,
+    ...(['GET', 'HEAD'].includes(request.method)
+      ? {}
+      : { body: await request.text() })
   })
 
-  return new Response(await response.text(), {
+  const contentType = response.headers.get('content-type') || ''
+  const body =
+    contentType.includes('application/json') || contentType.startsWith('text/')
+      ? await response.text()
+      : await response.arrayBuffer()
+
+  return new Response(body, {
     status: response.status,
     headers: response.headers
   })