Make sure to process headers correctly in blueprint

server/lib/blueprints/proxyResources.ts

@@ -138,12 +138,8 @@ export async function updateProxyResources(
                 ? true
                 : resourceData.ssl;
         let headers = "";
-        for (const header of resourceData.headers || []) {
-            headers += `${header.name}: ${header.value},`;
-        }
-        // if there are headers, remove the trailing comma
-        if (headers.endsWith(",")) {
-            headers = headers.slice(0, -1);
+        if (resourceData.headers) {
+            headers = JSON.stringify(resourceData.headers);
         }
 
         if (existingResource) {

server/routers/newt/targets.ts

@@ -15,7 +15,7 @@ export async function addTargets(
         }:${target.port}`;
     });
 
-    sendToClient(newtId, {
+    await sendToClient(newtId, {
         type: `newt/${protocol}/add`,
         data: {
             targets: payloadTargets