Wait for the suspense boundary above the router to resolve before sending the first streaming chunk (#3891)

* Change the suspense streaming context after suspense is resolved in the router

* Wait for the suspense context before streaming the first chunk in ssr

* forward more response parts

* warn

* extract the hydration format into a crate

* Fix hydration when no data is sent

* forward web and server features

* Fix suspense that starts on the client

* fix use_server_future on the client

* Add documentation for fullstack hooks and protocol

* downgrade rust edition

* fix clippy

* fix tests

* fix clippy

* Fix pure web compile

* undo changes to the fullstack router example

* fix formatting

packages/fullstack/src/axum_core.rs

@@ -202,8 +202,7 @@ async fn handle_server_fns_inner(
             }
 
             // apply the response parts from the server context to the response
-            let mut res_options = server_context.response_parts_mut();
-            res.headers_mut().extend(res_options.headers.drain());
+            server_context.send_response(&mut res);
 
             Ok(res)
         } else {
@@ -237,16 +236,6 @@ pub(crate) fn add_server_context(
     }
 }
 
-fn apply_request_parts_to_response<B>(
-    headers: hyper::header::HeaderMap,
-    response: &mut axum::response::Response<B>,
-) {
-    let mut_headers = response.headers_mut();
-    for (key, value) in headers.iter() {
-        mut_headers.insert(key, value.clone());
-    }
-}
-
 /// State used by [`render_handler`] to render a dioxus component with axum
 #[derive(Clone)]
 pub struct RenderHandleState {
@@ -367,8 +356,7 @@ pub async fn render_handler(
         Ok((freshness, rx)) => {
             let mut response = axum::response::Html::from(Body::from_stream(rx)).into_response();
             freshness.write(response.headers_mut());
-            let headers = server_context.response_parts().headers.clone();
-            apply_request_parts_to_response(headers, &mut response);
+            server_context.send_response(&mut response);
             Result::<http::Response<axum::body::Body>, StatusCode>::Ok(response)
         }
         Err(SSRError::Incremental(e)) => {