From 98f17a03bbca0ff7369eeb4a1c677caf7090d42f Mon Sep 17 00:00:00 2001
From: Florian Bruhin <git@the-compiler.org>
Date: Mon, 20 Mar 2017 11:50:04 +0100
Subject: [PATCH] Prevent page without history from being serialized

Fixes #2458
---
 qutebrowser/browser/webengine/webenginetab.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/qutebrowser/browser/webengine/webenginetab.py b/qutebrowser/browser/webengine/webenginetab.py
index 88c693244..9fe0704c9 100644
--- a/qutebrowser/browser/webengine/webenginetab.py
+++ b/qutebrowser/browser/webengine/webenginetab.py
@@ -369,6 +369,9 @@ class WebEngineHistory(browsertab.AbstractHistory):
         return self._history.canGoForward()
 
     def serialize(self):
+        # WORKAROUND for https://bugreports.qt.io/browse/QTBUG-59599
+        if self._history.count() == 0:
+            raise browsertab.WebTabError("Can't serialize page without history!")
         # WORKAROUND for https://github.com/qutebrowser/qutebrowser/issues/2289
         # FIXME:qtwebengine can we get rid of this with Qt 5.8.1?
         scheme = self._history.currentItem().url().scheme()