diff --git a/demo/index.js b/demo/index.js
index d59d97a..1d212cd 100644
--- a/demo/index.js
+++ b/demo/index.js
@@ -29,7 +29,13 @@ class ApiDemo extends ApiDemoPage {
     const webApi = this._computeApi(this.amf);
     const method = this._computeMethodModel(webApi, id);
     const expects = this._computeExpects(method);
-    const headers = this._computeHeaders(expects);
+    let headers
+    if(expects){
+      headers = this._computeHeaders(expects);
+    }else{
+      const returns = this._computeReturns(method);
+      headers = this._computeHeaderSchema(returns[0]);
+    }
     this.headers = headers;
     this.hasData = true;
   }
@@ -38,6 +44,7 @@ class ApiDemo extends ApiDemoPage {
     return [
       ['demo-api', 'Demo API'],
       ['async-api', 'Async API'],
+      ['jldAsync26', 'Async API 26'],
     ].map(([file, label]) => html`
       <anypoint-item data-src="${file}-compact.json">${label} - compact model</anypoint-item>
       <anypoint-item data-src="${file}.json">${label}</anypoint-item>
diff --git a/package-lock.json b/package-lock.json
index 697d418..106a995 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@api-components/api-headers-document",
-  "version": "4.2.5",
+  "version": "4.2.6",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index a7afa58..28f4443 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@api-components/api-headers-document",
   "description": "Documentation component for API headers based on AMF data model",
-  "version": "4.2.5",
+  "version": "4.2.6",
   "license": "Apache-2.0",
   "main": "index.js",
   "module": "index.js",
diff --git a/src/ApiHeadersDocument.js b/src/ApiHeadersDocument.js
index 7e23b3a..452a89f 100644
--- a/src/ApiHeadersDocument.js
+++ b/src/ApiHeadersDocument.js
@@ -80,8 +80,9 @@ export class ApiHeadersDocument extends LitElement {
   }
 
   render() {
-    const { opened, headers, amf, narrow, compatibility, headerLevel, graph } = this;
+    const { opened, headers, amf, narrow, compatibility, headerLevel, graph, noMainExample } = this;
     const hasHeaders = !!(headers) && (!!headers.length || !!Object.keys(headers).length);
+    
     return html`<style>${this.styles}</style>
     <section class="headers">
       <div
@@ -107,7 +108,7 @@ export class ApiHeadersDocument extends LitElement {
             ?narrow="${narrow}"
             ?graph="${graph}"
             noExamplesActions
-            noMainExample
+            ?noMainExample="${noMainExample}"
           ></api-type-document>` :
           html`<p class="no-info">Headers are not required by this endpoint</p>`}
       </anypoint-collapse>
@@ -153,6 +154,10 @@ export class ApiHeadersDocument extends LitElement {
        * Passed to `api-type-document`. Enables internal links rendering for types.
        */
       graph: { type: Boolean },
+      /**
+       * Use to define is show or hide mainExample
+       */
+      noMainExample: { type: Boolean },
     };
   }
 
@@ -167,6 +172,7 @@ export class ApiHeadersDocument extends LitElement {
     this.narrow = false;
     this.compatibility = false;
     this.graph = false;
+    this.noMainExample = true;
   }
 
   // Computes a label for the section toggle buttons.