1 files changed, 137 insertions, 0 deletions
diff --git a/dom/base/test/browser_refresh_content.js b/dom/base/test/browser_refresh_content.js
new file mode 100644
index 0000000000..bd1cf8084a
--- /dev/null
+++ b/dom/base/test/browser_refresh_content.js
@@ -0,0 +1,137 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/*
+ * Ensures resources can still be fetched without validation
+ */
+
+const CONTENT_URL =
+  "http://www.example.com/browser/dom/base/test/file_browser_refresh_content.html";
+
+async function run_test_browser_refresh(forceRevalidate) {
+  let tab = await BrowserTestUtils.openNewForegroundTab({
+    gBrowser,
+    url: CONTENT_URL,
+    waitForLoad: true,
+    /* Ensures each run is started with a fresh state */
+    forceNewProcess: true,
+  });
+
+  let originalAttributes = await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [],
+    async () => {
+      let result = content.document.getElementById("result");
+      await ContentTaskUtils.waitForCondition(() => {
+        return (
+          result.getAttribute("imageDataURL") &&
+          result.getAttribute("iframeContent") &&
+          result.getAttribute("expiredResourceCacheControl")
+        );
+      });
+      return {
+        imageDataURL: result.getAttribute("imageDataURL"),
+        iframeContent: result.getAttribute("iframeContent"),
+        expiredResourceCacheControl: result.getAttribute(
+          "expiredResourceCacheControl"
+        ),
+      };
+    }
+  );
+
+  let imageDataURL = originalAttributes.imageDataURL;
+  let expiredResourceCacheControl =
+    originalAttributes.expiredResourceCacheControl;
+
+  is(
+    originalAttributes.iframeContent,
+    "first load",
+    "Iframe is loaded with the initial content"
+  );
+
+  tab.linkedBrowser.reload();
+
+  await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
+
+  let attributes = await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [],
+    async () => {
+      let result = content.document.getElementById("result");
+
+      await ContentTaskUtils.waitForCondition(() => {
+        return (
+          result.getAttribute("imageDataURL") &&
+          result.getAttribute("expiredResourceCacheControl") &&
+          result.getAttribute("nonCacheableResourceCompleted")
+        );
+      });
+
+      return {
+        iframeContent: result.getAttribute("iframeContent"),
+        imageDataURL: result.getAttribute("imageDataURL"),
+        expiredResourceCacheControl: result.getAttribute(
+          "expiredResourceCacheControl"
+        ),
+        nonCacheableResourceCompleted: result.getAttribute(
+          "nonCacheableResourceCompleted"
+        ),
+      };
+    }
+  );
+
+  is(
+    attributes.iframeContent,
+    "second load",
+    "Iframe should always be revalidated"
+  );
+
+  if (!forceRevalidate) {
+    Assert.strictEqual(
+      attributes.imageDataURL,
+      imageDataURL,
+      "Image should use cache"
+    );
+  } else {
+    Assert.notStrictEqual(
+      attributes.imageDataURL,
+      imageDataURL,
+      "Image should be revalidated"
+    );
+  }
+
+  if (!forceRevalidate) {
+    Assert.strictEqual(
+      attributes.expiredResourceCacheControl,
+      expiredResourceCacheControl,
+      "max-age shouldn't be changed after reload because it didn't revalidate"
+    );
+  } else {
+    Assert.notStrictEqual(
+      attributes.expiredResourceCacheControl,
+      expiredResourceCacheControl,
+      "max-age should be changed after reload because it got revalidated"
+    );
+  }
+
+  is(
+    attributes.nonCacheableResourceCompleted,
+    "true",
+    "Non cacheable resource should still be loaded"
+  );
+
+  await BrowserTestUtils.removeTab(tab);
+}
+
+add_task(async function test_browser_refresh() {
+  Services.prefs.setBoolPref(
+    "browser.soft_reload.only_force_validate_top_level_document",
+    true
+  );
+  await run_test_browser_refresh(false);
+  Services.prefs.setBoolPref(
+    "browser.soft_reload.only_force_validate_top_level_document",
+    false
+  );
+  await run_test_browser_refresh(true);
+});