Ensure that <object>/<embed> navigation bypasses Service Workers.

Step 13 of https://w3c.github.io/ServiceWorker/#on-fetch-request-algorithm should exclude `embed` and `object` requests from Service Workers. Our implementation handles this correctly for the initial request, but failed to bypass the Service Worker for subsequent navigations. This patch adds a destination check to `ServiceWorkerMainResourceLoaderInterceptor::ShouldCreateForNavigation`, and ensures that the `destination` for a given request is set early enough in the lifecycle to ensure that the check succeeds. See also whatwg/fetch#948. Change-Id: I21a1d37da438e1d0f185696f2b3b4058bc3911fc Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2209456 Reviewed-by: Matt Falkenhagen <[email protected]> Reviewed-by: Tsuyoshi Horo <[email protected]> Reviewed-by: Kinuko Yasuda <[email protected]> Reviewed-by: Ben Kelly <[email protected]> Commit-Queue: Mike West <[email protected]> Cr-Commit-Position: refs/heads/master@{#773781}
web-platform-tests · Jun 1, 2020 · f58221d · f58221d
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diff --git a/service-workers/service-worker/embed-and-object-are-not-intercepted.https.html b/service-workers/service-worker/embed-and-object-are-not-intercepted.https.html
@@ -75,4 +75,30 @@
         });
   }, 'requests for OBJECT elements of an image should not be intercepted by service workers');
 
+promise_test(t => {
+    let frame;
+    return with_iframe('resources/object-navigation-is-not-intercepted-iframe.html')
+      .then(f => {
+          frame = f;
+          t.add_cleanup(() => { frame.remove(); });
+          return frame.contentWindow.test_promise;
+        })
+      .then(result => {
+          assert_equals(result, 'request for embedded content was not intercepted');
+        });
+  }, 'post-load navigation of OBJECT elements should not be intercepted by service workers');
+
+
+promise_test(t => {
+    let frame;
+    return with_iframe('resources/embed-navigation-is-not-intercepted-iframe.html')
+      .then(f => {
+          frame = f;
+          t.add_cleanup(() => { frame.remove(); });
+          return frame.contentWindow.test_promise;
+        })
+      .then(result => {
+          assert_equals(result, 'request for embedded content was not intercepted');
+        });
+  }, 'post-load navigation of EMBED elements should not be intercepted by service workers');
 </script>
diff --git a/service-workers/service-worker/resources/embed-navigation-is-not-intercepted-iframe.html b/service-workers/service-worker/resources/embed-navigation-is-not-intercepted-iframe.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>iframe for embed-and-object-are-not-intercepted test</title>
+<body>
+<script>
+// The EMBED element will call this with the result about whether the EMBED
+// request was intercepted by the service worker.
+var report_result;
+
+// Our parent (the root frame of the test) will examine this to get the result.
+var test_promise = new Promise(resolve => {
+    report_result = resolve;
+  });
+
+let el = document.createElement('embed');
+el.src = "/common/blank.html";
+el.addEventListener('load', _ => {
+  window[0].location = "/service-workers/service-worker/resources/embedded-content-from-server.html";
+}, { once: true });
+document.body.appendChild(el);
+</script>
+
+</body>
diff --git a/service-workers/service-worker/resources/object-navigation-is-not-intercepted-iframe.html b/service-workers/service-worker/resources/object-navigation-is-not-intercepted-iframe.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>iframe for embed-and-object-are-not-intercepted test</title>
+<body>
+<script>
+// The OBJECT element will call this with the result about whether the OBJECT
+// request was intercepted by the service worker.
+var report_result;
+
+// Our parent (the root frame of the test) will examine this to get the result.
+var test_promise = new Promise(resolve => {
+    report_result = resolve;
+  });
+
+let el = document.createElement('object');
+el.data = "/common/blank.html";
+el.addEventListener('load', _ => {
+  window[0].location = "/service-workers/service-worker/resources/embedded-content-from-server.html";
+}, { once: true });
+document.body.appendChild(el);
+</script>
+
+</body>
+