Replace rendering with just sending 200 OK

Fixes #22 - https://github.com/salvo-rs/salvo/issues/233

src/main.rs

@@ -166,7 +166,8 @@ async fn serve_file(req: &mut Request, res: &mut Response) {
         // X-Accel-Redirect lets nginx serve the file directly, instead of us doing all that hard work.
         let xsend = "/files/".to_string() + &filename.to_string();
         res.add_header("X-Accel-Redirect", xsend, true).unwrap();
-        res.render("");
+        // https://github.com/salvo-rs/salvo/issues/233
+        res.set_status_code(StatusCode::OK);
     } else {
         // If nginx sendfile is disabled, we need to render the file directly
         let filepath = "files/".to_string() + &filename.to_string();
@@ -178,9 +179,8 @@ async fn serve_file(req: &mut Request, res: &mut Response) {
                 "content-type exists: content-type: {:?}",
                 res.headers().get("content-type").unwrap()
             );
-            file.send(headers, res).await;
-            // This complains about us writing into ResBody::Stream, but it means it renders as plaintext, so who cares.
-            res.render("");
+            file.send(headers, res).await; 
+            res.set_status_code(StatusCode::OK);
         } else {
             // Grab the content-type of the file
             let contenttype = file.content_type().to_string();

static/sharex.sxcu

-{
-  "Name": "cz0.au file uploader",
-  "DestinationType": "FileUploader",
-  "RequestURL": "https://cz0.au",
-  "FileFormName": "file",
-  "ResponseType": "Text",
-  "URL": "$json:url$",
-  "DeletionURL": "$json:deletionurl$"
-}