diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index 6238b7229002a..318e75d6918fb 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -9120,7 +9120,9 @@ public class WebView extends AbsoluteLayout
 
     /** @hide send content invalidate */
     protected void contentInvalidateAll() {
-        mWebViewCore.sendMessage(EventHub.CONTENT_INVALIDATE_ALL);
+        if (mWebViewCore != null && !mBlockWebkitViewMessages) {
+            mWebViewCore.sendMessage(EventHub.CONTENT_INVALIDATE_ALL);
+        }
     }
 
     /** @hide call pageSwapCallback upon next page swap */