1 files changed, 52 insertions, 0 deletions
diff --git a/dom/html/test/browser_refresh_after_document_write.js b/dom/html/test/browser_refresh_after_document_write.js
new file mode 100644
index 0000000000..88e0dbe489
--- /dev/null
+++ b/dom/html/test/browser_refresh_after_document_write.js
@@ -0,0 +1,52 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/*
+Test that after using document.write(...), refreshing the document and calling write again,
+resulting document.URL is identical to the original URL.
+
+This testcase is aimed at preventing bug 619092
+*/
+var testURL =
+  "http://mochi.test:8888/browser/dom/html/test/file_refresh_after_document_write.html";
+let aTab, aBrowser;
+
+function test() {
+  waitForExplicitFinish();
+
+  aTab = BrowserTestUtils.addTab(gBrowser, testURL);
+  aBrowser = gBrowser.getBrowserForTab(aTab);
+  BrowserTestUtils.browserLoaded(aBrowser)
+    .then(() => {
+      is(
+        aBrowser.currentURI.spec,
+        testURL,
+        "Make sure we start at the correct URL"
+      );
+
+      SpecialPowers.spawn(aBrowser, [], () => {
+        // test_btn calls document.write() then reloads the document
+        let test_btn = content.document.getElementById("test_btn");
+
+        docShell.chromeEventHandler.addEventListener(
+          "load",
+          () => {
+            test_btn.click();
+          },
+          { once: true, capture: true }
+        );
+
+        test_btn.click();
+      });
+
+      return BrowserTestUtils.browserLoaded(aBrowser);
+    })
+    .then(() => {
+      return SpecialPowers.spawn(aBrowser, [], () => content.document.URL);
+    })
+    .then(url => {
+      is(url, testURL, "Document URL should be identical after reload");
+      gBrowser.removeTab(aTab);
+      finish();
+    });
+}