1 files changed, 34 insertions, 0 deletions
diff --git a/docshell/test/browser/browser_bug1719178.js b/docshell/test/browser/browser_bug1719178.js
new file mode 100644
index 0000000000..6c4fc2d15f
--- /dev/null
+++ b/docshell/test/browser/browser_bug1719178.js
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+SimpleTest.requestFlakyTimeout(
+  "The test needs to let objects die asynchronously."
+);
+
+add_task(async function test_accessing_shistory() {
+  let tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "about:preferences"
+  );
+  let sh = tab.linkedBrowser.browsingContext.sessionHistory;
+  ok(sh, "Should have SessionHistory object");
+  gBrowser.removeTab(tab);
+  tab = null;
+  for (let i = 0; i < 5; ++i) {
+    SpecialPowers.Services.obs.notifyObservers(
+      null,
+      "memory-pressure",
+      "heap-minimize"
+    );
+    SpecialPowers.DOMWindowUtils.garbageCollect();
+    await new Promise(function (r) {
+      // eslint-disable-next-line mozilla/no-arbitrary-setTimeout
+      setTimeout(r, 50);
+    });
+  }
+
+  try {
+    sh.reloadCurrentEntry();
+  } catch (ex) {}
+  ok(true, "This test shouldn't crash.");
+});