From 9ca33854bf35b46a7796b334ace870029d3e36b9 Mon Sep 17 00:00:00 2001
From: Michael Drake <michael.drake@codethink.co.uk>
Date: Sat, 23 Sep 2017 16:10:45 +0100
Subject: [PATCH] Browser history: Don't segfault when visiting pages with
 frames.

Core can't make queries of front end about browser windows with no
gui window.
---
 desktop/browser_history.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/desktop/browser_history.c b/desktop/browser_history.c
index dac9c7671..640302773 100644
--- a/desktop/browser_history.c
+++ b/desktop/browser_history.c
@@ -454,7 +454,8 @@ nserror browser_window_history_update(struct browser_window *bw,
 		guit->bitmap->render(history->current->page.bitmap, content);
 	}
 
-	if (guit->window->get_scroll(bw->window, &sx, &sy)) {
+	if (bw->window != NULL &&
+	    guit->window->get_scroll(bw->window, &sx, &sy)) {
 		/* Successfully got scroll offsets, update the entry */
 		history->current->page.scroll_x = \
 			(float)sx / (float)content_get_width(content);