diff --git a/.github/workflows/AutoTag.yml b/.github/workflows/AutoTag.yml
index f82d3c16..eb7d9863 100644
--- a/.github/workflows/AutoTag.yml
+++ b/.github/workflows/AutoTag.yml
@@ -22,7 +22,9 @@ jobs:
     runs-on: ubuntu-latest
       
     env:
-      version: 22.4.24-alpha
+      version: 22.4.24
+      version-suffix: alpha
+      prerelease: true
 
     steps:
       - uses: actions/checkout@v3
@@ -37,7 +39,7 @@ jobs:
         uses: mathieudutour/github-tag-action@v6.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
-          custom_tag: ${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          custom_tag: ${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
 
          
       
diff --git a/.github/workflows/macos-6.2.yml b/.github/workflows/macos-6.2.yml
index 6d334deb..752fd6b6 100644
--- a/.github/workflows/macos-6.2.yml
+++ b/.github/workflows/macos-6.2.yml
@@ -29,7 +29,9 @@ jobs:
         qt_arch: [clang_64]
     env:
       targetName: GoldenDict
-      version: 22.4.24-alpha
+      version: 22.4.24
+      version-suffix: alpha
+      prerelease: true
 
     steps:
       # macos 11.0 默认环境变了,要指定
@@ -88,7 +90,7 @@ jobs:
           CHANGELOG="${CHANGELOG//$'\n'/'%0A'}"
           CHANGELOG="${CHANGELOG//$'\r'/'%0D'}"
           CHANGELOG="${CHANGELOG//'\"'/'%22'}"
-          CHANGELOG="${CHANGELOG//"'"/'%20'}"
+          CHANGELOG="${CHANGELOG//"'"/ }"
           echo "::set-output name=COMMIT_SUMMARY::$(echo "$CHANGELOG")"           
       # tag 上传Release
       - name: uploadRelease
@@ -97,10 +99,10 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: ${{ env.targetName }}.dmg
           asset_name: ${{ matrix.qt_ver }}-${{ env.targetName }}_${{ matrix.os }}_${{ steps.vars.outputs.sha_short }}.dmg
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
           body: |
             release on date:      ${{steps.vars.outputs.release_date}} time: ${{steps.vars.outputs.release_time_clock}}  
             branch:               ${{ github.ref_name }}
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 5029b8e8..069efdfc 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -30,7 +30,9 @@ jobs:
         qt_arch: [clang_64]
     env:
       targetName: GoldenDict
-      version: 22.4.24-alpha
+      version: 22.4.24
+      version-suffix: alpha
+      prerelease: true
 
     steps:
       # macos 11.0 默认环境变了,要指定
@@ -91,7 +93,7 @@ jobs:
           CHANGELOG="${CHANGELOG//$'\n'/'%0A'}"
           CHANGELOG="${CHANGELOG//$'\r'/'%0D'}"
           CHANGELOG="${CHANGELOG//'\"'/'%22'}"
-          CHANGELOG="${CHANGELOG//"'"/'%20'}"
+          CHANGELOG="${CHANGELOG//"'"/ }"
           echo "::set-output name=COMMIT_SUMMARY::$(echo "$CHANGELOG")"           
       # tag 上传Release
       - name: uploadRelease
@@ -100,10 +102,10 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: ${{ env.targetName }}.dmg
           asset_name: ${{ matrix.qt_ver }}-${{ env.targetName }}_${{ matrix.os }}_${{ steps.vars.outputs.sha_short }}.dmg
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
           body: |
             release on date:      ${{steps.vars.outputs.release_date}} time: ${{steps.vars.outputs.release_time_clock}}  
             branch:               ${{ github.ref_name }}
diff --git a/.github/workflows/ubuntu-6.2.yml b/.github/workflows/ubuntu-6.2.yml
index a0e42420..0bd27809 100644
--- a/.github/workflows/ubuntu-6.2.yml
+++ b/.github/workflows/ubuntu-6.2.yml
@@ -30,7 +30,9 @@ jobs:
         qt_ver: [6.2.4,6.3.0]
         qt_arch: [gcc_64]
     env:
-      version: 22.4.24-alpha
+      version: 22.4.24
+      version-suffix: alpha
+      prerelease: true
     steps:
       - name: Install Qt
         uses: jurplel/install-qt-action@v3
@@ -95,7 +97,7 @@ jobs:
           CHANGELOG="${CHANGELOG//$'\n'/'%0A'}"
           CHANGELOG="${CHANGELOG//$'\r'/'%0D'}"
           CHANGELOG="${CHANGELOG//'\"'/'%22'}"
-          CHANGELOG="${CHANGELOG//"'"/'%20'}"
+          CHANGELOG="${CHANGELOG//"'"/ }"
           echo "::set-output name=COMMIT_SUMMARY::$(echo "$CHANGELOG")"          
       - name: uploadRelease
         # if: startsWith(github.event.ref, 'refs/tags/')
@@ -104,10 +106,10 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: ${{ steps.vars.outputs.appname }}
           asset_name: ${{ matrix.qt_ver }}-${{ steps.vars.outputs.appname }}
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
           body: |
             release on date:      ${{steps.vars.outputs.release_date}} time: ${{steps.vars.outputs.release_time_clock}}  
             branch:               ${{ github.ref_name }}
diff --git a/.github/workflows/ubuntu-PR-check.yml b/.github/workflows/ubuntu-PR-check.yml
index d0ed72da..3ab651bb 100644
--- a/.github/workflows/ubuntu-PR-check.yml
+++ b/.github/workflows/ubuntu-PR-check.yml
@@ -24,7 +24,9 @@ jobs:
         qt_ver: [5.15.2,6.2.4]
         qt_arch: [gcc_64]
     env:
-      version: 22.4.24-alpha
+      version: 22.4.24
+      version-suffix: alpha
+      prerelease: true
     steps:
       - uses: actions/setup-python@v3
         with:
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 5f35e623..2b9f8144 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -30,7 +30,9 @@ jobs:
         qt_ver: [5.15.2]
         qt_arch: [gcc_64]
     env:
-      version: 22.4.24-alpha
+      version: 22.4.24
+      version-suffix: alpha
+      prerelease: true
     steps:
       - name: Install Qt
         uses: jurplel/install-qt-action@v3
@@ -92,7 +94,7 @@ jobs:
           CHANGELOG="${CHANGELOG//$'\n'/'%0A'}"
           CHANGELOG="${CHANGELOG//$'\r'/'%0D'}"
           CHANGELOG="${CHANGELOG//'\"'/'%22'}"
-          CHANGELOG="${CHANGELOG//"'"/'%20'}"
+          CHANGELOG="${CHANGELOG//"'"/ }"
           echo "::set-output name=COMMIT_SUMMARY::$(echo "$CHANGELOG")"          
       - name: uploadRelease
         # if: startsWith(github.event.ref, 'refs/tags/')
@@ -101,10 +103,10 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: ${{ steps.vars.outputs.appname }}
           asset_name: ${{ matrix.qt_ver }}-${{ steps.vars.outputs.appname }}
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
           body: |
             release on date:      ${{steps.vars.outputs.release_date}} time: ${{steps.vars.outputs.release_time_clock}}  
             branch:               ${{ github.ref_name }}
diff --git a/.github/workflows/windows-6.2.yml b/.github/workflows/windows-6.2.yml
index a8ef4e5b..78cb9ee2 100644
--- a/.github/workflows/windows-6.2.yml
+++ b/.github/workflows/windows-6.2.yml
@@ -31,7 +31,9 @@ jobs:
         qt_arch: [win64_msvc2019_64]
     env:
       targetName: GoldenDict.exe
-      version: 22.4.24-alpha
+      version: 22.4.24
+      version-suffix: alpha
+      prerelease: true
     steps:
       - uses: actions/setup-python@v3
         with:
@@ -67,7 +69,7 @@ jobs:
           CHANGELOG="${CHANGELOG//$'\n'/'%0A'}"
           CHANGELOG="${CHANGELOG//$'\r'/'%0D'}"
           CHANGELOG="${CHANGELOG//'\"'/'%22'}"
-          CHANGELOG="${CHANGELOG//"'"/'%20'}"
+          CHANGELOG="${CHANGELOG//"'"/ }"
           echo "::set-output name=COMMIT_SUMMARY::$(echo "$CHANGELOG")"          
 
       # # msvc编译
@@ -111,10 +113,10 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: ${{ steps.package.outputs.packageName }}.zip
           asset_name: ${{ matrix.qt_ver }}-${{ steps.package.outputs.packageName }}.zip
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
           body: |
             release on date:      ${{steps.vars.outputs.release_date}} time: ${{steps.vars.outputs.release_time_clock}}  
             branch:               ${{ github.ref_name }}
@@ -131,10 +133,10 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: release/${{ env.targetName }}
           asset_name: ${{ matrix.qt_ver }}-${{ env.targetName }}
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
 
       - name: copy nsis 
         shell: bash
@@ -156,7 +158,7 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: ${{ steps.package.outputs.packageName }}/GoldenDict-v22-Install.exe
           asset_name: ${{ matrix.qt_ver }}-GoldenDict-v22-Install.exe
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
\ No newline at end of file
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
\ No newline at end of file
diff --git a/.github/workflows/windows-PR-check.yml b/.github/workflows/windows-PR-check.yml
index 264ee662..ff2258cd 100644
--- a/.github/workflows/windows-PR-check.yml
+++ b/.github/workflows/windows-PR-check.yml
@@ -27,7 +27,9 @@ jobs:
 
     env:
       targetName: GoldenDict.exe
-      version: 22.4.24-alpha
+      version: 22.4.24
+      version-suffix: alpha
+      prerelease: true
     steps:
       - uses: actions/setup-python@v3
         with:
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 6b362d95..6a09f258 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -32,7 +32,9 @@ jobs:
         qt_arch: [win64_msvc2019_64]
     env:
       targetName: GoldenDict.exe
-      version: 22.4.24-alpha
+      version: 22.4.24
+      version-suffix: alpha
+      prerelease: true
     # 步骤
     steps:
       # 安装Qt
@@ -69,7 +71,7 @@ jobs:
           CHANGELOG="${CHANGELOG//$'\n'/'%0A'}"
           CHANGELOG="${CHANGELOG//$'\r'/'%0D'}"
           CHANGELOG="${CHANGELOG//'\"'/'%22'}"
-          CHANGELOG="${CHANGELOG//"'"/'%20'}"
+          CHANGELOG="${CHANGELOG//"'"/ }"
           echo "::set-output name=COMMIT_SUMMARY::$(echo "$CHANGELOG")"
       - uses: ilammy/msvc-dev-cmd@v1
       # msvc编译
@@ -106,10 +108,10 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: ${{ steps.package.outputs.packageName }}.zip
           asset_name: ${{ matrix.qt_ver }}-${{ steps.package.outputs.packageName }}.zip
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
           body: |
             release on date:      ${{steps.vars.outputs.release_date}} time: ${{steps.vars.outputs.release_time_clock}}  
             branch:               ${{ github.ref_name }}
@@ -131,10 +133,10 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: release/${{ env.targetName }}
           asset_name: ${{ matrix.qt_ver }}-${{ env.targetName }}
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
             
 
       - name: copy nsis 
@@ -159,8 +161,8 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: ${{ steps.package.outputs.packageName }}/GoldenDict-v22-Install.exe
           asset_name: ${{ matrix.qt_ver }}-GoldenDict-v22-Install.exe
-          tag: v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          tag: v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
           overwrite: true 
-          release_name: GoldenDict-v${{env.version}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
-          prerelease: true
+          release_name: GoldenDict-v${{env.version}}-${{env.version-suffix}}.${{ steps.vars.outputs.release_hm }}.${{ steps.vars.outputs.sha_short }}
+          prerelease: ${{env.prerelease}}
           
\ No newline at end of file
diff --git a/article_maker.cc b/article_maker.cc
index e18b63fb..5df14417 100644
--- a/article_maker.cc
+++ b/article_maker.cc
@@ -733,19 +733,19 @@ void ArticleRequest::bodyFinished()
     {
         update();
         qDebug() << "send dicts(stemmed):" << word << ":" << dictIds;
-        emit GlobalBroadcaster::instance()->emitDictIds(ActiveDictIds{word, dictIds});
+        emit GlobalBroadcaster::instance()->dictionaryChanges(ActiveDictIds{word, dictIds});
         dictIds.clear();
     }
     else {
       finish();
       qDebug() << "send dicts(finished):" << word << ":" << dictIds;
-      emit GlobalBroadcaster::instance()->emitDictIds(ActiveDictIds{word, dictIds});
+      emit GlobalBroadcaster::instance()->dictionaryChanges(ActiveDictIds{word, dictIds});
       dictIds.clear();
     }
   } else if (wasUpdated) {
     update();
     qDebug() << "send dicts(updated):" << word << ":" << dictIds;
-    emit GlobalBroadcaster::instance()->emitDictIds(ActiveDictIds{word, dictIds});
+    emit GlobalBroadcaster::instance()->dictionaryChanges(ActiveDictIds{word, dictIds});
     dictIds.clear();
   }
 }
diff --git a/article_netmgr.cc b/article_netmgr.cc
index b39a3eeb..9a3edc6b 100644
--- a/article_netmgr.cc
+++ b/article_netmgr.cc
@@ -29,7 +29,7 @@ using std::string;
     connect( baseReply, SIGNAL( errorOccurred( QNetworkReply::NetworkError) ),
              this, SLOT( applyError( QNetworkReply::NetworkError ) ) );
 
-    connect( baseReply, SIGNAL( readyRead() ), this, SLOT( readDataFromBase() ) );
+    connect( baseReply, SIGNAL( readyRead() ), this, SIGNAL( readyRead() ) );
 
     // Redirect QNetworkReply signals
 
@@ -68,7 +68,8 @@ using std::string;
     QList< QByteArray > rawHeaders = baseReply->rawHeaderList();
     for( QList< QByteArray >::iterator it = rawHeaders.begin(); it != rawHeaders.end(); ++it )
     {
-      if( it->toLower() != "x-frame-options" )
+      auto headerName = it->toLower();
+      if( headerName != "x-frame-options" && headerName != "content-security-policy")
         setRawHeader( *it, baseReply->rawHeader( *it ) );
     }
 
@@ -121,7 +122,7 @@ using std::string;
 
   qint64 AllowFrameReply::bytesAvailable() const
   {
-    return buffer.size() + QNetworkReply::bytesAvailable();
+    return baseReply->bytesAvailable();
   }
 
   void AllowFrameReply::applyError( QNetworkReply::NetworkError code )
@@ -130,20 +131,22 @@ using std::string;
     emit errorOccurred( code );
   }
 
-  void AllowFrameReply::readDataFromBase()
-  {
-    QByteArray data;
-    data.resize( baseReply->bytesAvailable() );
-    baseReply->read( data.data(), data.size() );
-    buffer += data;
-    emit readyRead();
-  }
+//  void AllowFrameReply::readDataFromBase()
+//  {
+////    QByteArray data;
+////    data.resize( baseReply->bytesAvailable() );
+////    baseReply->read( data.data(), data.size() );
+////    buffer += data;
+//    emit readyRead();
+//  }
 
   qint64 AllowFrameReply::readData( char * data, qint64 maxSize )
   {
-    qint64 size = qMin( maxSize, qint64( buffer.size() ) );
-    memcpy( data, buffer.data(), size );
-    buffer.remove( 0, size );
+    auto bytesAvailable= baseReply->bytesAvailable();
+    qint64 size = qMin( maxSize, bytesAvailable );
+    baseReply->read( data, size );
+//    memcpy( data, buffer.data(), size );
+//    buffer.remove( 0, size );
     return size;
   }
 
@@ -151,6 +154,7 @@ QNetworkReply * ArticleNetworkAccessManager::createRequest( Operation op,
                                                             QNetworkRequest const & req,
                                                             QIODevice * outgoingData )
 {
+  QUrl url;
   if ( op == GetOperation )
   {
     if ( req.url().scheme() == "qrcx" )
@@ -168,7 +172,7 @@ QNetworkReply * ArticleNetworkAccessManager::createRequest( Operation op,
       return QNetworkAccessManager::createRequest( op, newReq, outgoingData );
     }
 
-    QUrl url=req.url();
+    url=req.url();
     QMimeType mineType=db.mimeTypeForUrl (url);
     QString contentType=mineType.name();
 
@@ -178,7 +182,6 @@ QNetworkReply * ArticleNetworkAccessManager::createRequest( Operation op,
             Utils::Url::addQueryItem(url,"word",path.mid(1));
             url.setPath("");
             Utils::Url::addQueryItem(url,"group","1");
-
         }
     }
 
@@ -193,7 +196,7 @@ QNetworkReply * ArticleNetworkAccessManager::createRequest( Operation op,
   //can not match dictionary in the above code,means the url must be external links.
   //if not external url,can be blocked from here. no need to continue execute the following code.
   //such as bres://upload.wikimedia....  etc .
-  if (!Utils::isExternalLink(req.url())) {
+  if (!Utils::isExternalLink(url)) {
     gdWarning( "Blocking element \"%s\" as built-in link ", req.url().toEncoded().data() );
     return new BlockedNetworkReply( this );
   }
@@ -205,17 +208,15 @@ QNetworkReply * ArticleNetworkAccessManager::createRequest( Operation op,
   {
     QByteArray referer = req.rawHeader( "Referer" );
 
-    //GD_DPRINTF( "Referer: %s\n", referer.data() );
-
     QUrl refererUrl = QUrl::fromEncoded( referer );
 
     //GD_DPRINTF( "Considering %s vs %s\n", getHostBase( req.url() ).toUtf8().data(),
     //        getHostBase( refererUrl ).toUtf8().data() );
 
-    if ( !req.url().host().endsWith( refererUrl.host() ) &&
-         getHostBase( req.url() ) != getHostBase( refererUrl ) && !req.url().scheme().startsWith("data") )
+    if ( !url.host().endsWith( refererUrl.host() ) &&
+         getHostBase( url ) != getHostBase( refererUrl ) && !url.scheme().startsWith("data") )
     {
-      gdWarning( "Blocking element \"%s\" due to not same domain", req.url().toEncoded().data() );
+      gdWarning( "Blocking element \"%s\" due to not same domain", url.toEncoded().data() );
 
       return new BlockedNetworkReply( this );
     }
@@ -241,15 +242,17 @@ QNetworkReply * ArticleNetworkAccessManager::createRequest( Operation op,
   }
 
   // spoof User-Agent
-  QNetworkRequest newReq(req);
-  if ( hideGoldenDictHeader && req.url().scheme().startsWith("http", Qt::CaseInsensitive))
+  QNetworkRequest newReq;
+  newReq.setUrl(url);
+  newReq.setAttribute( QNetworkRequest::RedirectPolicyAttribute, QNetworkRequest::NoLessSafeRedirectPolicy );
+  if ( hideGoldenDictHeader && url.scheme().startsWith("http", Qt::CaseInsensitive))
   {
     newReq.setRawHeader("User-Agent", req.rawHeader("User-Agent").replace(qApp->applicationName().toUtf8(), ""));
   }
 
   QNetworkReply *  reply = QNetworkAccessManager::createRequest( op, newReq, outgoingData );
 
-  if( req.url().scheme() == "https")
+  if( url.scheme() == "https")
   {
 #ifndef QT_NO_OPENSSL
     connect( reply, SIGNAL( sslErrors( QList< QSslError > ) ),
@@ -521,15 +524,11 @@ LocalSchemeHandler::LocalSchemeHandler(ArticleNetworkAccessManager& articleNetMg
 
 void LocalSchemeHandler::requestStarted(QWebEngineUrlRequestJob *requestJob)
 {
-    QUrl url = requestJob->requestUrl();
+  QUrl url = requestJob->requestUrl();
+  QNetworkRequest request;
+  request.setUrl( url );
 
-    QNetworkRequest request;
-    request.setUrl( url );
-
-    QNetworkReply* reply=this->mManager.createRequest(QNetworkAccessManager::GetOperation,request);
-    connect(reply,&QNetworkReply::finished,requestJob,[=](){
-        requestJob->reply("text/html",reply);
-    });
-    connect(requestJob, &QObject::destroyed, reply, &QObject::deleteLater);
+  QNetworkReply * reply = this->mManager.createRequest( QNetworkAccessManager::GetOperation, request );
+  connect( reply, &QNetworkReply::finished, requestJob, [ = ]() { requestJob->reply( "text/html", reply ); } );
+  connect( requestJob, &QObject::destroyed, reply, &QObject::deleteLater );
 }
-
diff --git a/article_netmgr.hh b/article_netmgr.hh
index 4400df99..2e881b28 100644
--- a/article_netmgr.hh
+++ b/article_netmgr.hh
@@ -66,7 +66,7 @@ public slots:
   // Own AllowFrameReply slots
   void applyMetaData();
   void applyError( QNetworkReply::NetworkError code );
-  void readDataFromBase();
+//  void readDataFromBase();
 
   // Redirect QNetworkReply slots
   virtual void abort()
@@ -214,5 +214,6 @@ protected:
 
 private:
     ArticleNetworkAccessManager& mManager;
+  QNetworkAccessManager mgr;
 };
 #endif
diff --git a/articleview.cc b/articleview.cc
index 3c14acc1..f366129d 100644
--- a/articleview.cc
+++ b/articleview.cc
@@ -347,7 +347,7 @@ ArticleView::ArticleView( QWidget * parent, ArticleNetworkAccessManager & nm, Au
   // Variable name for store current selection range
   rangeVarName = QString( "sr_%1" ).arg( QString::number( (quint64)this, 16 ) );
 
-  connect(GlobalBroadcaster::instance(), SIGNAL( emitDictIds(ActiveDictIds)), this,
+  connect(GlobalBroadcaster::instance(), SIGNAL( dictionaryChanges(ActiveDictIds)), this,
           SLOT(setActiveDictIds(ActiveDictIds)));
 
   channel = new QWebChannel(ui.definition->page());
diff --git a/gddebug.cc b/gddebug.cc
index 157ff5c4..a295c93b 100644
--- a/gddebug.cc
+++ b/gddebug.cc
@@ -42,23 +42,23 @@ void gdDebug(const char *msg, ...)
 {
 va_list ap;
 va_start(ap, msg);
-QTextCodec *localeCodec = 0;
+// QTextCodec *localeCodec = 0;
 
-  if( logFilePtr && logFilePtr->isOpen() )
-  {
-    if( utf8Codec == 0 )
-      utf8Codec = QTextCodec::codecForName( "UTF8" );
+  // if( logFilePtr && logFilePtr->isOpen() )
+  // {
+  //   if( utf8Codec == 0 )
+  //     utf8Codec = QTextCodec::codecForName( "UTF8" );
 
-    localeCodec = QTextCodec::codecForLocale();
-    QTextCodec::setCodecForLocale( utf8Codec );
-  }
+  //   localeCodec = QTextCodec::codecForLocale();
+  //   QTextCodec::setCodecForLocale( utf8Codec );
+  // }
 
   qDebug()<< QString().vasprintf( msg, ap );
 
-  if( logFilePtr && logFilePtr->isOpen() )
-  {
-    QTextCodec::setCodecForLocale( localeCodec );
-  }
+  // if( logFilePtr && logFilePtr->isOpen() )
+  // {
+  //   QTextCodec::setCodecForLocale( localeCodec );
+  // }
 
   va_end(ap);
 }
diff --git a/gddebug.hh b/gddebug.hh
index e8148e0d..5e1dfe26 100644
--- a/gddebug.hh
+++ b/gddebug.hh
@@ -7,7 +7,7 @@
 #define GD_DPRINTF(...) do {} while( 0 )
 #define GD_FDPRINTF(...) do {} while( 0 )
 #else
-#define GD_DPRINTF(...) printf(__VA_ARGS__)
+#define GD_DPRINTF(...) gdDebug(__VA_ARGS__)
 #define GD_FDPRINTF(...) fprintf(__VA_ARGS__)
 #endif
 
diff --git a/globalbroadcaster.cpp b/globalbroadcaster.cpp
index 9d58a2df..761e2682 100644
--- a/globalbroadcaster.cpp
+++ b/globalbroadcaster.cpp
@@ -19,4 +19,11 @@ Config::Preferences * GlobalBroadcaster::getPreference()
   return preference;
 }
 
+void GlobalBroadcaster::addWhitelist(QString url){
+  whitelist.push_back(url);
+}
+
+bool GlobalBroadcaster::existedInWhitelist(QString url){
+  return std::find(whitelist.begin(), whitelist.end(), url) != whitelist.end();
+}
 // namespace global
diff --git a/globalbroadcaster.h b/globalbroadcaster.h
index 7298e3a6..3014a46e 100644
--- a/globalbroadcaster.h
+++ b/globalbroadcaster.h
@@ -2,6 +2,7 @@
 #define GLOBAL_GLOBALBROADCASTER_H
 
 #include <QObject>
+#include <vector>
 #include "config.hh"
 
 struct ActiveDictIds
@@ -15,14 +16,16 @@ class GlobalBroadcaster : public QObject
   Q_OBJECT
 private:
   Config::Preferences * preference;
-
+  std::vector<QString> whitelist;
 public:
   void setPreference( Config::Preferences * _pre );
   Config::Preferences * getPreference();
   GlobalBroadcaster( QObject * parent = nullptr );
+  void addWhitelist(QString host);
+  bool existedInWhitelist(QString host);
   static GlobalBroadcaster * instance();
 signals:
-  void emitDictIds( ActiveDictIds ad );
+  void dictionaryChanges( ActiveDictIds ad );
 };
 
 #endif // GLOBAL_GLOBALBROADCASTER_H
diff --git a/goldendict.pro b/goldendict.pro
index 8c119681..02d69efe 100644
--- a/goldendict.pro
+++ b/goldendict.pro
@@ -226,6 +226,7 @@ DEFINES += PROGRAM_VERSION=\\\"$$VERSION\\\"
 HEADERS += folding.hh \
     article_inspect.h \
     globalbroadcaster.h \
+    iframeschemehandler.h \
     inc_case_folding.hh \
     inc_diacritic_folding.hh \
     mainwindow.hh \
@@ -366,6 +367,7 @@ FORMS += groups.ui \
 SOURCES += folding.cc \
     article_inspect.cpp \
     globalbroadcaster.cpp \
+    iframeschemehandler.cpp \
     main.cc \
     dictionary.cc \
     config.cc \
diff --git a/iframeschemehandler.cpp b/iframeschemehandler.cpp
new file mode 100644
index 00000000..cc1d6d5e
--- /dev/null
+++ b/iframeschemehandler.cpp
@@ -0,0 +1,104 @@
+#include "iframeschemehandler.h"
+
+#include <QTextCodec>
+
+IframeSchemeHandler::IframeSchemeHandler(QObject * parent):QWebEngineUrlSchemeHandler(parent){
+
+}
+void IframeSchemeHandler::requestStarted(QWebEngineUrlRequestJob *requestJob)
+{
+  QUrl url = requestJob->requestUrl();
+
+  // website dictionary iframe url
+  url = QUrl( Utils::Url::queryItemValue( url, "url" ) );
+  QNetworkRequest request;
+  request.setUrl( url );
+
+  QNetworkReply * reply = mgr.get( request );
+  auto finishAction     = [ = ]() -> void
+  {
+    // Handle reply data
+
+    QByteArray replyData = reply->readAll();
+    QString articleString;
+
+    QTextCodec * codec = QTextCodec::codecForHtml( replyData );
+    if( codec )
+      articleString = codec->toUnicode( replyData );
+    else
+      articleString = QString::fromUtf8( replyData );
+
+    // Change links from relative to absolute
+
+    QString root = reply->url().scheme() + "://" + reply->url().host();
+    QString base = root + reply->url().path();
+    while( !base.isEmpty() && !base.endsWith( "/" ) )
+      base.chop( 1 );
+
+    QRegularExpression tags( "<\\s*(a|link|img|script)\\s+[^>]*(src|href)\\s*=\\s*['\"][^>]+>",
+                             QRegularExpression::CaseInsensitiveOption );
+    QRegularExpression links( "\\b(src|href)\\s*=\\s*(['\"])([^'\"]+['\"])",
+                              QRegularExpression::CaseInsensitiveOption );
+    int pos = 0;
+    QString articleNewString;
+    QRegularExpressionMatchIterator it = tags.globalMatch( articleString );
+    while( it.hasNext() )
+    {
+      QRegularExpressionMatch match = it.next();
+      articleNewString += articleString.mid( pos, match.capturedStart() - pos );
+      pos = match.capturedEnd();
+
+      QString tag = match.captured();
+
+      QRegularExpressionMatch match_links = links.match( tag );
+      if( !match_links.hasMatch() )
+      {
+        articleNewString += tag;
+        continue;
+      }
+
+      QString url = match_links.captured( 3 );
+
+      if( url.indexOf( ":/" ) >= 0 || url.indexOf( "data:" ) >= 0 || url.indexOf( "mailto:" ) >= 0 ||
+          url.startsWith( "#" ) || url.startsWith( "javascript:" ) )
+      {
+        // External link, anchor or base64-encoded data
+        articleNewString += tag;
+        continue;
+      }
+
+      QString newUrl = match_links.captured( 1 ) + "=" + match_links.captured( 2 );
+      if( url.startsWith( "//" ) )
+        newUrl += reply->url().scheme() + ":";
+      else if( url.startsWith( "/" ) )
+        newUrl += root;
+      else
+        newUrl += base;
+      newUrl += match_links.captured( 3 );
+
+      tag.replace( match_links.capturedStart(), match_links.capturedLength(), newUrl );
+      articleNewString += tag;
+    }
+    if( pos )
+    {
+      articleNewString += articleString.mid( pos );
+      articleString = articleNewString;
+      articleNewString.clear();
+    }
+
+    sptr< Dictionary::DataRequestInstant > response = new Dictionary::DataRequestInstant( true );
+
+    auto content = articleString.toStdString();
+    response->getData().resize( content.size() );
+    memcpy( &( response->getData().front() ), content.data(), content.size() );
+
+    auto contentType="text/html";
+    auto newReply = new ArticleResourceReply( this, request, response, contentType );
+
+    requestJob->reply( contentType, newReply );
+    connect( requestJob, &QObject::destroyed, newReply, &QObject::deleteLater );
+  };
+  connect( reply, &QNetworkReply::finished, requestJob, finishAction );
+
+  connect( requestJob, &QObject::destroyed, reply, &QObject::deleteLater );
+}
diff --git a/iframeschemehandler.h b/iframeschemehandler.h
new file mode 100644
index 00000000..2b8005a8
--- /dev/null
+++ b/iframeschemehandler.h
@@ -0,0 +1,19 @@
+#ifndef IFRAMESCHEMEHANDLER_H
+#define IFRAMESCHEMEHANDLER_H
+
+#include"article_netmgr.hh"
+
+class IframeSchemeHandler : public QWebEngineUrlSchemeHandler
+{
+    Q_OBJECT
+public:
+    IframeSchemeHandler(QObject * parent=nullptr);
+    void requestStarted(QWebEngineUrlRequestJob *requestJob);
+
+protected:
+
+private:
+      QNetworkAccessManager mgr;
+};
+
+#endif // IFRAMESCHEMEHANDLER_H
diff --git a/main.cc b/main.cc
index 316ed352..958e2b5d 100644
--- a/main.cc
+++ b/main.cc
@@ -253,7 +253,7 @@ int main( int argc, char ** argv )
 
 #endif
 
-  QStringList localSchemes={"gdlookup","gdau","gico","qrcx","bres","bword","gdprg","gdvideo","gdpicture","gdtts"};
+  QStringList localSchemes={"gdlookup","gdau","gico","qrcx","bres","bword","gdprg","gdvideo","gdpicture","gdtts","ifr"};
 
   for (int i = 0; i < localSchemes.size(); ++i)
   {
diff --git a/mainwindow.cc b/mainwindow.cc
index c4716e54..cb9e3410 100644
--- a/mainwindow.cc
+++ b/mainwindow.cc
@@ -145,14 +145,19 @@ MainWindow::MainWindow( Config::Class & cfg_ ):
 
   GlobalBroadcaster::instance()->setPreference(&cfg.preferences);
 
-  localSchemeHandler = new LocalSchemeHandler(articleNetMgr);
-  QWebEngineProfile::defaultProfile()->installUrlSchemeHandler("gdlookup", localSchemeHandler);
-  QWebEngineProfile::defaultProfile()->installUrlSchemeHandler("bword", localSchemeHandler);
+  localSchemeHandler = new LocalSchemeHandler( articleNetMgr );
+  QWebEngineProfile::defaultProfile()->installUrlSchemeHandler( "gdlookup", localSchemeHandler );
+  QWebEngineProfile::defaultProfile()->installUrlSchemeHandler( "bword", localSchemeHandler );
 
-  QStringList localSchemes={"gdau","gico","qrcx","bres","gdprg","gdvideo","gdpicture","gdtts"};
-  resourceSchemeHandler = new ResourceSchemeHandler(articleNetMgr);
-  for(int i=0;i<localSchemes.size();i++){
-    QWebEngineProfile::defaultProfile()->installUrlSchemeHandler(localSchemes.at(i).toLatin1(), resourceSchemeHandler);
+  iframeSchemeHandler = new IframeSchemeHandler( this );
+  QWebEngineProfile::defaultProfile()->installUrlSchemeHandler( "ifr", iframeSchemeHandler );
+
+  QStringList localSchemes = { "gdau", "gico", "qrcx", "bres", "gdprg", "gdvideo", "gdpicture", "gdtts" };
+  resourceSchemeHandler    = new ResourceSchemeHandler( articleNetMgr );
+  for( int i = 0; i < localSchemes.size(); i++ )
+  {
+    QWebEngineProfile::defaultProfile()->installUrlSchemeHandler( localSchemes.at( i ).toLatin1(),
+                                                                  resourceSchemeHandler );
   }
 
   wuri = new WebUrlRequestInterceptor();
diff --git a/mainwindow.hh b/mainwindow.hh
index 3867c1b0..05a30436 100644
--- a/mainwindow.hh
+++ b/mainwindow.hh
@@ -34,6 +34,7 @@
 #include "hotkeywrapper.hh"
 #include "weburlrequestinterceptor.h"
 #include "resourceschemehandler.h"
+#include "iframeschemehandler.h"
 #ifdef HAVE_X11
 #include <fixx11h.h>
 #endif
@@ -176,8 +177,9 @@ private:
 
   QIcon starIcon, blueStarIcon;
 
-  LocalSchemeHandler *localSchemeHandler;
-  ResourceSchemeHandler *resourceSchemeHandler;
+  LocalSchemeHandler * localSchemeHandler;
+  IframeSchemeHandler * iframeSchemeHandler;
+  ResourceSchemeHandler * resourceSchemeHandler;
 
   /// Applies the qt's stylesheet, given the style's name.
   void applyQtStyleSheet( QString const & displayStyle, QString const & addonStyle );
diff --git a/mdictparser.cc b/mdictparser.cc
index d2366f7a..f3124a46 100644
--- a/mdictparser.cc
+++ b/mdictparser.cc
@@ -120,7 +120,7 @@ bool MdictParser::open( const char * filename )
   filename_ = QString::fromUtf8( filename );
   file_ = new QFile( filename_ );
 
-  GD_DPRINTF( "MdictParser: open %s\n", filename );
+  gdDebug( "MdictParser: open %s", filename );
 
   if ( file_.isNull() || !file_->exists() )
     return false;
diff --git a/mdx.cc b/mdx.cc
index 69271c86..b19558f5 100644
--- a/mdx.cc
+++ b/mdx.cc
@@ -523,7 +523,7 @@ void MdxDictionary::makeFTSIndex( QAtomicInt & isCancelled, bool firstIteration
   if( firstIteration && getArticleCount() > FTS::MaxDictionarySizeForFastSearch )
     return;
 
-  gdDebug( "MDict: Building the full-text index for dictionary: %s\n",
+  gdDebug( "MDict: Building the full-text index for dictionary: %s",
            getName().c_str() );
 
   try
@@ -533,7 +533,7 @@ void MdxDictionary::makeFTSIndex( QAtomicInt & isCancelled, bool firstIteration
   }
   catch( std::exception &ex )
   {
-    gdWarning( "MDict: Failed building full-text search index for \"%s\", reason: %s\n", getName().c_str(), ex.what() );
+    gdWarning( "MDict: Failed building full-text search index for \"%s\", reason: %s", getName().c_str(), ex.what() );
     QFile::remove( FsEncoding::decode( ftsIdxName.c_str() ) );
   }
 }
@@ -550,7 +550,7 @@ void MdxDictionary::getArticleText( uint32_t articleAddress, QString & headword,
   }
   catch( std::exception &ex )
   {
-    gdWarning( "MDict: Failed retrieving article from \"%s\", reason: %s\n", getName().c_str(), ex.what() );
+    gdWarning( "MDict: Failed retrieving article from \"%s\", reason: %s", getName().c_str(), ex.what() );
   }
 }
 
diff --git a/website.cc b/website.cc
index d7048cc0..6534626e 100644
--- a/website.cc
+++ b/website.cc
@@ -9,6 +9,7 @@
 #include <QDir>
 #include <QFileInfo>
 #include "gddebug.hh"
+#include "globalbroadcaster.h"
 
 #include <QRegularExpression>
 
@@ -371,8 +372,12 @@ sptr< DataRequest > WebSiteDictionary::getArticle( wstring const & str,
 
     string result = "<div class=\"website_padding\"></div>";
 
+    //permissive add url to global whitelist.
+    QUrl url(urlString);
+    GlobalBroadcaster::instance()->addWhitelist(url.host());
+
     result += string( "<iframe id=\"gdexpandframe-" ) + getId() +
-                      "\" src=\"" + urlString.data() +
+              "\" src=\"ifr://localhost?url=" +QUrl::toPercentEncoding(  urlString).data() +
                       "\" onmouseover=\"processIframeMouseOver('gdexpandframe-" + getId() + "');\" "
                       "onmouseout=\"processIframeMouseOut();\" "
                       "scrolling=\"no\" marginwidth=\"0\" marginheight=\"0\" "
diff --git a/weburlrequestinterceptor.cpp b/weburlrequestinterceptor.cpp
index 30efa543..6b8faa62 100644
--- a/weburlrequestinterceptor.cpp
+++ b/weburlrequestinterceptor.cpp
@@ -1,6 +1,7 @@
 #include "weburlrequestinterceptor.h"
 #include <QDebug>
 #include "utils.hh"
+#include "globalbroadcaster.h"
 
 WebUrlRequestInterceptor::WebUrlRequestInterceptor(QObject *p)
   :QWebEngineUrlRequestInterceptor(p)
@@ -8,6 +9,14 @@ WebUrlRequestInterceptor::WebUrlRequestInterceptor(QObject *p)
 
 }
 void WebUrlRequestInterceptor::interceptRequest( QWebEngineUrlRequestInfo &info) {
+  if( Utils::isExternalLink( info.requestUrl() ) )
+  {
+    if(!GlobalBroadcaster::instance()-> existedInWhitelist(info.requestUrl().host()))
+    {
+      info.block( true );
+    }
+  }
+
   if (QWebEngineUrlRequestInfo::NavigationTypeLink == info.navigationType() && info.resourceType() == QWebEngineUrlRequestInfo::ResourceTypeMainFrame) {
     //workaround to fix devtool "Switch devtool to chinese" interface was blocked.
     if( info.requestUrl().scheme() == "devtools" )