Issue 4931 - add possibility to not send data depending on connection properties

src/WebRequestJsObject.cpp

Index: src/WebRequestJsObject.cpp
diff --git a/src/WebRequestJsObject.cpp b/src/WebRequestJsObject.cpp
index 48a703709053895845a5bb83e4036158b9b094f9..e96ed1f6fbce4481936acd53908e5d6c301b4265 100644
--- a/src/WebRequestJsObject.cpp
+++ b/src/WebRequestJsObject.cpp
@@ -56,9 +56,18 @@ namespace
         throw std::runtime_error("Third argument to GET must be a function");
     }
 
+    AdblockPlus::ServerResponse NotAllowedResponse()
+    {
+      AdblockPlus::ServerResponse result;
+      result.status = AdblockPlus::WebRequest::NS_ERROR_CONNECTION_REFUSED;
+      result.responseStatus = 0;
+      return result;
+    }
+
     void Run()
     {
-      AdblockPlus::ServerResponse result = jsEngine->GetWebRequest()->GET(url, headers);
+      AdblockPlus::ServerResponse result = jsEngine->IsConnectionAllowed() ?
+        jsEngine->GetWebRequest()->GET(url, headers) : NotAllowedResponse();
 
       AdblockPlus::JsContext context(jsEngine);