1 files changed, 45 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/currentSrc-blob-cache.html b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/currentSrc-blob-cache.html
new file mode 100644
index 0000000000..a5e108dcd6
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/embedded-content/the-img-element/currentSrc-blob-cache.html
@@ -0,0 +1,45 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>currentSrc is right even if underlying image is a shared blob</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1625786">
+<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
+<link rel="author" title="Mozilla" href="https://mozilla.org">
+<img id="first">
+<img id="second">
+<script>
+promise_test(async t => {
+  let canvas = document.createElement("canvas");
+  canvas.width = 100;
+  canvas.height = 100;
+  let ctx = canvas.getContext("2d");
+  ctx.fillStyle = "green";
+  ctx.rect(0, 0, 100, 100);
+  ctx.fill();
+
+  let blob = await new Promise(resolve => canvas.toBlob(resolve));
+
+  let first = document.querySelector("#first");
+  let second = document.querySelector("#second");
+
+  let firstLoad = new Promise(resolve => {
+    first.addEventListener("load", resolve, { once: true });
+  });
+
+  let secondLoad = new Promise(resolve => {
+    second.addEventListener("load", resolve, { once: true });
+  });
+
+  let uri1 = URL.createObjectURL(blob);
+  let uri2 = URL.createObjectURL(blob);
+  first.src = uri1;
+  second.src = uri2;
+
+  await firstLoad;
+  await secondLoad;
+
+  assert_equals(first.src, first.currentSrc);
+  assert_equals(second.src, second.currentSrc);
+});
+</script>