diff --git a/src/nercone_website/server.py b/src/nercone_website/server.py
index b2f9538..3068635 100644
--- a/src/nercone_website/server.py
+++ b/src/nercone_website/server.py
@@ -108,6 +108,17 @@ async def default_response(request: Request, full_path: str) -> Response:
         markdown_mode = True
         full_path = full_path[:-3] + ".html"
 
+    lightweight_query = request.query_params.get("lightweight", "").lower()
+    lightweight_header = request.headers.get("lightweight", "").lower()
+    lightweight_signal = lightweight_query or lightweight_header
+
+    if lightweight_signal in ["1", "y", "yes", "true"]:
+        lightweight_mode = True
+    elif lightweight_signal in ["0", "n", "no", "false"]:
+        lightweight_mode = False
+    else:
+        lightweight_mode = request.cookies.get("lightweight_mode", "") == "true"
+
     if full_path in ["", "/"]:
         template_candidates = ["index.html"]
     elif full_path.endswith(".html"):
@@ -123,19 +134,8 @@ async def default_response(request: Request, full_path: str) -> Response:
                 main = str(soup.find("main")) if soup.find("main") else content
                 markdown = markitdown.convert_stream(io.BytesIO(main.encode("utf-8")), file_extension=".html")
                 accesscounter.increase()
-                return PlainTextResponse(markdown.text_content, status_code=200)
+                return PlainTextResponse(markdown.text_content, status_code=200, media_type="text/markdown")
             else:
-                lightweight_header = request.headers.get("lightweight", "").lower()
-                lightweight_query = request.query_params.get("lightweight", "").lower()
-                lightweight_signal = lightweight_header or lightweight_query
-
-                if lightweight_signal in ["1", "true", "y", "yes"]:
-                    lightweight_mode = True
-                elif lightweight_signal in ["0", "false", "n", "no"]:
-                    lightweight_mode = False
-                else:
-                    lightweight_mode = request.cookies.get("lightweight_mode", "") == "true"
-
                 if lightweight_mode:
                     source = templates.env.loader.get_source(templates.env, name)[0]
                     source = source.replace('{% extends "/base.html" %}', '{% extends "/base-light.html" %}')