diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/downloader/HttpClientGenerator.java b/webmagic-core/src/main/java/us/codecraft/webmagic/downloader/HttpClientGenerator.java
index 6409f568..9c389165 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/downloader/HttpClientGenerator.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/downloader/HttpClientGenerator.java
@@ -34,9 +34,9 @@ import java.util.Map;
  * @since 0.4.0
  */
 public class HttpClientGenerator {
-	
+
 	private transient Logger logger = LoggerFactory.getLogger(getClass());
-	
+
     private PoolingHttpClientConnectionManager connectionManager;
 
     public HttpClientGenerator() {
@@ -48,43 +48,43 @@ public class HttpClientGenerator {
         connectionManager.setDefaultMaxPerRoute(100);
     }
 
-	private SSLConnectionSocketFactory buildSSLConnectionSocketFactory() {
-		try {
+    private SSLConnectionSocketFactory buildSSLConnectionSocketFactory() {
+        try {
             return new SSLConnectionSocketFactory(createIgnoreVerifySSL(), new String[]{"SSLv3", "TLSv1", "TLSv1.1", "TLSv1.2", "TLSv1.3"},
                     null,
                     new DefaultHostnameVerifier()); // 优先绕过安全证书
-		} catch (KeyManagementException e) {
+        } catch (KeyManagementException e) {
             logger.error("ssl connection fail", e);
         } catch (NoSuchAlgorithmException e) {
             logger.error("ssl connection fail", e);
         }
-		return SSLConnectionSocketFactory.getSocketFactory();
+        return SSLConnectionSocketFactory.getSocketFactory();
 	}
 
-	private SSLContext createIgnoreVerifySSL() throws NoSuchAlgorithmException, KeyManagementException {
-		// 实现一个X509TrustManager接口，用于绕过验证，不用修改里面的方法
-		X509TrustManager trustManager = new X509TrustManager() {
-
-			@Override
-			public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
-			}
-
-			@Override
-			public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
-			}
-
-			@Override
-			public X509Certificate[] getAcceptedIssuers() {
-				return null;
-			}
-			
-		};
-		
-		SSLContext sc = SSLContext.getInstance("SSLv3");
-		sc.init(null, new TrustManager[] { trustManager }, null);
-		return sc;
+    private SSLContext createIgnoreVerifySSL() throws NoSuchAlgorithmException, KeyManagementException {
+        // 实现一个X509TrustManager接口，用于绕过验证，不用修改里面的方法
+        X509TrustManager trustManager = new X509TrustManager() {
+
+            @Override
+            public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
+            }
+
+            @Override
+            public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
+            }
+
+            @Override
+            public X509Certificate[] getAcceptedIssuers() {
+                return null;
+            }
+
+        };
+
+        SSLContext sc = SSLContext.getInstance("SSLv3");
+        sc.init(null, new TrustManager[] { trustManager }, null);
+        return sc;
 	}
-    
+
     public HttpClientGenerator setPoolSize(int poolSize) {
         connectionManager.setMaxTotal(poolSize);
         return this;
@@ -96,7 +96,7 @@ public class HttpClientGenerator {
 
     private CloseableHttpClient generateClient(Site site) {
         HttpClientBuilder httpClientBuilder = HttpClients.custom();
-        
+
         httpClientBuilder.setConnectionManager(connectionManager);
         if (site.getUserAgent() != null) {
             httpClientBuilder.setUserAgent(site.getUserAgent());