From 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Fri, 19 Apr 2024 03:47:29 +0200
Subject: Adding upstream version 115.8.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../navigation/test_aboutblank_change_process.html | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 docshell/test/navigation/test_aboutblank_change_process.html

(limited to 'docshell/test/navigation/test_aboutblank_change_process.html')
diff --git a/docshell/test/navigation/test_aboutblank_change_process.html b/docshell/test/navigation/test_aboutblank_change_process.html
new file mode 100644
index 0000000000..61325570f3
--- /dev/null
+++ b/docshell/test/navigation/test_aboutblank_change_process.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<head>
+  <meta charset="utf-8">
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css" />
+</head>
+<script>
+// Open a window and navigate it from https://example.com to about:blank
+// With fission, we should switch processes and about:blank should load in
+// the same process as this test page.
+// This is a crash test.
+add_task(async function test_aboutblank_change_process() {
+  let exampleLoaded = new Promise(resolve => {
+    function onMessage(event) {
+      if (event.data == "body-loaded") {
+        window.removeEventListener("message", onMessage);
+        resolve();
+      }
+    }
+    window.addEventListener("message", onMessage);
+  });
+  let win = window.open();
+  win.location = "https://example.com/tests/docshell/test/navigation/file_tell_opener.html";
+  await exampleLoaded;
+
+  win.location = "about:blank";
+
+  // A crash happens somewhere here when about:blank does not go via
+  // DocumentChannel with fission enabled
+
+  // Wait for about:blank to load in this process
+  await SimpleTest.promiseWaitForCondition(() => {
+    try {
+      return win.location.href == "about:blank";
+    } catch (e) {
+      // While the `win` still has example.com page loaded, `win.location` will
+      // be a cross origin object and querying win.location.href will throw a
+      // SecurityError. Return false as long as this is the case.
+      return false;
+    }
+  })
+
+  ok(true, "We did not crash");
+  win.close();
+});
+</script>
-- 
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