1 files changed, 19 insertions, 0 deletions
diff --git a/dom/canvas/test/imagebitmap_bug1239300.js b/dom/canvas/test/imagebitmap_bug1239300.js
new file mode 100644
index 0000000000..cc08cb5c63
--- /dev/null
+++ b/dom/canvas/test/imagebitmap_bug1239300.js
@@ -0,0 +1,19 @@
+function testBug1239300() {
+  return new Promise(function (resolve, reject) {
+    createImageBitmap(new Blob()).then(
+      function () {
+        ok(false, "The promise should be rejected with InvalidStateError.");
+        reject();
+      },
+      function (result) {
+        if (result.name == "InvalidStateError") {
+          ok(true, "The promise should be rejected with InvalidStateError.");
+          resolve();
+        } else {
+          ok(false, "The promise should be rejected with InvalidStateError.");
+          reject();
+        }
+      }
+    );
+  });
+}