Doc: Add code snippet to QWebEngineCookieStore::setCookieFilter() docs

Task-number: QTBUG-66723
Change-Id: Ic59f2bea41d6f5a4b0a1ca2b27ed7cce79b4a6ce
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

1 files changed, 12 insertions, 1 deletions

diff --git a/src/core/api/qwebenginecookiestore.cpp b/src/core/api/qwebenginecookiestore.cpp
index 713dcdf6d..583ca1df8 100644
--- a/src/core/api/qwebenginecookiestore.cpp
+++ b/src/core/api/qwebenginecookiestore.cpp
@@ -336,9 +336,20 @@ void QWebEngineCookieStore::deleteAllCookies()
     \since 5.11
 
     Installs a cookie filter that can prevent sites and resources from using cookies.
-    The \a filterCallback must be a lambda or functor taking a FilterRequest structure. If the
+    The \a filter must be a lambda or functor taking a FilterRequest structure. If the
     cookie is to be rejected, the filter can set FilterRequest::accepted to \c false.
 
+    The following code snippet illustrates how to set a cookie filter:
+
+    \code
+    profile->setCookieFilter(
+        [&allowThirdPartyCookiesSetting](QWebEngineCookieStore::FilterRequest &request)
+        { request.accepted = !request.thirdParty || allowThirdPartyCookiesSetting; }
+    );
+    \endcode
+
+    You can unset the filter with a nullptr argument.
+
     The callback should not be used to execute heavy tasks since it is running on the
     IO thread and therefore blocks the Chromium networking.