Fallback to HTTP GET implementation if HEAD implementaion is not present

src/router.rs

@@ -25,9 +25,18 @@ impl<Data> Router<Data> {
         path: &'a str,
         method: &http::Method,
     ) -> Option<(&'a BoxedEndpoint<Data>, RouteMatch<'a>)> {
-        self.table
-            .route(path)
-            .and_then(|(r, p)| Some((r.endpoints.get(method)?, p)))
+        // If it is a HTTP HEAD request then check if there is a callback in the endpoints map
+        // if not then fallback to the behavior of HTTP GET else proceed as usual
+            if method == http::Method::HEAD && 
+            !self.table.route(path).unwrap().0.endpoints.contains_key(&http::Method::HEAD){
+               self.table
+                   .route(path)
+                   .and_then(|(r, p)| Some((r.endpoints.get(&http::Method::GET)?, p)))
+            } else {            
+               self.table
+                   .route(path)
+                   .and_then(|(r, p)| Some((r.endpoints.get(method)?, p)))
+            }
     }
 }