Sync docs from master to gh-pages

spring-cloud-netflix.html

@@ -2788,6 +2788,57 @@ as a fallback.  Here is a very simple <code>ZuulFallbackProvider</code> implemen
     customers: /customers/**</code></pre>
 </div>
 </div>
+<div class="paragraph">
+<p>If you would like to provide a default fallback for all routes than you can create a bean of
+type <code>ZuulFallbackProvider</code> and have the <code>getRoute</code> method return <code>*</code> or <code>null</code>.</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="highlight"><code class="language-java" data-lang="java">class MyFallbackProvider implements ZuulFallbackProvider {
+    @Override
+    public String getRoute() {
+        return "*";
+    }
+
+    @Override
+    public ClientHttpResponse fallbackResponse() {
+        return new ClientHttpResponse() {
+            @Override
+            public HttpStatus getStatusCode() throws IOException {
+                return HttpStatus.OK;
+            }
+
+            @Override
+            public int getRawStatusCode() throws IOException {
+                return 200;
+            }
+
+            @Override
+            public String getStatusText() throws IOException {
+                return "OK";
+            }
+
+            @Override
+            public void close() {
+
+            }
+
+            @Override
+            public InputStream getBody() throws IOException {
+                return new ByteArrayInputStream("fallback".getBytes());
+            }
+
+            @Override
+            public HttpHeaders getHeaders() {
+                HttpHeaders headers = new HttpHeaders();
+                headers.setContentType(MediaType.APPLICATION_JSON);
+                return headers;
+            }
+        };
+    }
+}</code></pre>
+</div>
+</div>
 </div>
 <div class="sect2">
 <h3 id="zuul-developer-guide">Zuul Developer Guide</h3>