diff --git a/messageviewer/src/viewer/webengine/blockexternalresourcesurlinterceptor/blockexternalresourcesurlinterceptor.cpp b/messageviewer/src/viewer/webengine/blockexternalresourcesurlinterceptor/blockexternalresourcesurlinterceptor.cpp
--- a/messageviewer/src/viewer/webengine/blockexternalresourcesurlinterceptor/blockexternalresourcesurlinterceptor.cpp
+++ b/messageviewer/src/viewer/webengine/blockexternalresourcesurlinterceptor/blockexternalresourcesurlinterceptor.cpp
@@ -34,6 +34,9 @@
 
 bool BlockExternalResourcesUrlInterceptor::interceptRequest(QWebEngineUrlRequestInfo &info)
 {
+    if (info.requestUrl().scheme() == QStringLiteral("data")
+        || info.requestUrl().scheme() == QStringLiteral("file"))
+        return false;
     const QWebEngineUrlRequestInfo::ResourceType resourceType = info.resourceType();
     const QWebEngineUrlRequestInfo::NavigationType navigationType = info.navigationType();
     if (resourceType == QWebEngineUrlRequestInfo::ResourceTypeMedia
diff --git a/messageviewer/src/viewer/webengine/blockexternalresourcesurlinterceptor/loadexternalreferencesurlinterceptor.cpp b/messageviewer/src/viewer/webengine/blockexternalresourcesurlinterceptor/loadexternalreferencesurlinterceptor.cpp
--- a/messageviewer/src/viewer/webengine/blockexternalresourcesurlinterceptor/loadexternalreferencesurlinterceptor.cpp
+++ b/messageviewer/src/viewer/webengine/blockexternalresourcesurlinterceptor/loadexternalreferencesurlinterceptor.cpp
@@ -47,6 +47,9 @@
 
 bool LoadExternalReferencesUrlInterceptor::interceptRequest(QWebEngineUrlRequestInfo &info)
 {
+    if (info.requestUrl().scheme() == QStringLiteral("data")
+        || info.requestUrl().scheme() == QStringLiteral("file"))
+        return false;
     if (d->mAllowLoadExternalReference) {
         return false;
     } else {