Add imageSrcset and imageSizes IDL attributes to HTMLLinkElement

This feature is behind the Experimental Web Platform feature flag. Spec PR: whatwg/html#4048 Bug: 813452 Change-Id: I84c58035789b64a311637cebc4672d16661980c2
web-platform-tests · Nov 26, 2018 · db7d0f6 · db7d0f6
1 parent 817ed89
commit db7d0f6
Showing 1 changed file with 31 additions and 0 deletions.
diff --git a/preload/dynamic-adding-preload-imagesrcset.tentative.html b/preload/dynamic-adding-preload-imagesrcset.tentative.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/preload/resources/preload_helper.js"></script>
+<script>
+    var t = async_test('Makes sure that a dynamically added preload with imagesrcset works');
+</script>
+<body>
+<script>
+    t.step(function() {
+        verifyPreloadAndRTSupport();
+        var link = document.createElement("link");
+        link.as = "image";
+        link.rel = "preload";
+        link.href = "resources/square.png?default";
+        link.imageSrcset = "resources/square.png?200 200w, resources/square.png?400 400w, resources/square.png?800 800w";
+        link.imageSizes = "400px";
+        link.onload = t.step_func(function() {
+            t.step_timeout(function() {
+                verifyNumberOfDownloads("resources/square.png?default", 0);
+                verifyNumberOfDownloads("resources/square.png?200", 0);
+                verifyNumberOfDownloads("resources/square.png?400", 1);
+                verifyNumberOfDownloads("resources/square.png?800", 0);
+                t.done();
+            }, 0);
+        });
+        document.body.appendChild(link);
+    });
+</script>
+<script src="resources/dummy.js?pipe=trickle(d5)&dynamic-adding-preload"></script>
+</body>