reduce clones and fix some code styles and redundant code

src/html.rs

@@ -155,7 +155,7 @@ pub fn walk_and_embed_assets(
 
                                         // If a network error occured, warn
                                         Err(e) => {
-                                            eprintln!("Warning: {}", e,);
+                                            eprintln!("Warning: {}", e);
 
                                             // If failed to resolve, replace with absolute URL
                                             href_full_url
@@ -515,9 +515,7 @@ fn get_child_node_by_name(handle: &Handle, node_name: &str) -> Handle {
     });
     match matching_children {
         Some(node) => node.clone(),
-        _ => {
-            return handle.clone();
-        }
+        _ => handle.clone(),
     }
 }
 

src/http.rs

@@ -28,14 +28,15 @@ pub fn retrieve_asset(
             let mut response = client.get(url).send()?;
 
             if !opt_silent {
-                if url == response.url().as_str() {
+                let res_url = response.url().as_str();
+                if url == res_url {
                     eprintln!("{}", &url);
                 } else {
-                    eprintln!("{} -> {}", &url, &response.url().as_str());
+                    eprintln!("{} -> {}", &url, res_url);
                 }
             }
 
-            let new_cache_key = clean_url(response.url().to_string());
+            let new_cache_key = clean_url(response.url());
 
             if as_dataurl {
                 // Convert response into a byte array
@@ -54,7 +55,7 @@ pub fn retrieve_asset(
                 };
                 let dataurl = data_to_dataurl(&mimetype, &data);
                 // insert in cache
-                cache.insert(new_cache_key, dataurl.to_string());
+                cache.insert(new_cache_key, dataurl.clone());
                 Ok((dataurl, response.url().to_string()))
             } else {
                 let content = response.text().unwrap();