diff --git a/example/qml/page/T_Http.qml b/example/qml/page/T_Http.qml
index a28962bf..1b0eda03 100644
--- a/example/qml/page/T_Http.qml
+++ b/example/qml/page/T_Http.qml
@@ -61,8 +61,9 @@ FluScrollablePage{
         }
         onFinish: {
             btn_download.disabled = false
+            btn_download.text = "下载文件"
         }
-        onDownloadFileProgress:
+        onDownloadProgress:
             (recv,total)=>{
                 var precent = (recv/total * 100).toFixed(0) + "%"
                 btn_download.text = "下载中..."+precent
diff --git a/src/FluApp.cpp b/src/FluApp.cpp
index ba688e83..f5b2aaa8 100644
--- a/src/FluApp.cpp
+++ b/src/FluApp.cpp
@@ -23,6 +23,7 @@ FluApp *FluApp::getInstance()
 FluApp::FluApp(QObject *parent)
     : QObject{parent}
 {
+    httpInterceptor(nullptr);
 }
 
 FluApp::~FluApp(){
diff --git a/src/FluHttp.cpp b/src/FluHttp.cpp
index c19a9e42..be38e259 100644
--- a/src/FluHttp.cpp
+++ b/src/FluHttp.cpp
@@ -110,7 +110,6 @@ void FluHttp::get(QVariantMap params,QVariantMap headers){
 
 Q_INVOKABLE void FluHttp::download(QString path,QVariantMap params,QVariantMap headers){
     QVariantMap request = invokeIntercept(params,headers,"download").toMap();
-    qDebug()<<request["headers"].toMap();
     QThreadPool::globalInstance()->start([=](){
         HttpClient client;
         Q_EMIT start();
@@ -122,7 +121,7 @@ Q_INVOKABLE void FluHttp::download(QString path,QVariantMap params,QVariantMap h
             .queryParams(request["params"].toMap())
             .headers(request["headers"].toMap())
             .onDownloadProgress([=](qint64 recv, qint64 total) {
-                Q_EMIT downloadFileProgress(recv,total);
+                Q_EMIT downloadProgress(recv,total);
             })
             .onDownloadFileSuccess([=](QString result) {
                 Q_EMIT success(result);
@@ -143,6 +142,9 @@ QVariant FluHttp::invokeIntercept(const QVariant& params,const QVariant& headers
         {"headers",headers},
         {"method",method}
     };
+    if(!FluApp::getInstance()->httpInterceptor()){
+        return requet;
+    }
     QVariant target;
     QMetaObject::invokeMethod(FluApp::getInstance()->httpInterceptor(), "onIntercept",Q_RETURN_ARG(QVariant,target),Q_ARG(QVariant, requet));
     return target;
diff --git a/src/FluHttp.h b/src/FluHttp.h
index cbefeef0..a1141e69 100644
--- a/src/FluHttp.h
+++ b/src/FluHttp.h
@@ -22,7 +22,7 @@ public:
     Q_SIGNAL void finish();
     Q_SIGNAL void error(int status,QString errorString);
     Q_SIGNAL void success(QString result);
-    Q_SIGNAL void downloadFileProgress(qint64 recv, qint64 total);
+    Q_SIGNAL void downloadProgress(qint64 recv, qint64 total);
     Q_INVOKABLE void get(QVariantMap params = {},QVariantMap headers = {});
     Q_INVOKABLE void post(QVariantMap params = {},QVariantMap headers = {});
     Q_INVOKABLE void postJson(QVariantMap params = {},QVariantMap headers = {});