1 files changed, 37 insertions, 0 deletions
diff --git a/docshell/test/browser/browser_bug1674464.js b/docshell/test/browser/browser_bug1674464.js
new file mode 100644
index 0000000000..1b78802cc0
--- /dev/null
+++ b/docshell/test/browser/browser_bug1674464.js
@@ -0,0 +1,37 @@
+const DUMMY_1 =
+  // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+  "http://example.org/browser/docshell/test/browser/dummy_page.html";
+const DUMMY_2 =
+  // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+  "http://example.com/browser/docshell/test/browser/dummy_page.html";
+
+add_task(async function test_backAndReload() {
+  await BrowserTestUtils.withNewTab({ gBrowser, url: DUMMY_1 }, async function(
+    browser
+  ) {
+    await BrowserTestUtils.crashFrame(browser);
+
+    info("Start second load.");
+    BrowserTestUtils.loadURI(browser, DUMMY_2);
+    await BrowserTestUtils.waitForLocationChange(gBrowser, DUMMY_2);
+
+    browser.goBack();
+    await BrowserTestUtils.waitForLocationChange(gBrowser);
+
+    is(
+      browser.browsingContext.childSessionHistory.index,
+      0,
+      "We should have gone back to the first page"
+    );
+    is(
+      browser.browsingContext.childSessionHistory.count,
+      2,
+      "If a tab crashes after a load has finished we shouldn't have an entry for about:tabcrashed"
+    );
+    is(
+      browser.documentURI.spec,
+      DUMMY_1,
+      "If a tab crashes after a load has finished we shouldn't have an entry for about:tabcrashed"
+    );
+  });
+});