1 files changed, 26 insertions, 0 deletions
diff --git a/extensions/crypto/00_webidl.js b/extensions/crypto/00_webidl.js
new file mode 100644
index 000000000..4545526bf
--- /dev/null
+++ b/extensions/crypto/00_webidl.js
@@ -0,0 +1,26 @@
+// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+"use strict";
+
+((window) => {
+  const webidl = window.__bootstrap.webidl;
+  webidl.converters["AlgorithmIdentifier"] = (V, opts) => {
+    // Union for (object or DOMString)
+    if (typeof V == "object") {
+      return webidl.converters["object"](V, opts);
+    }
+
+    return webidl.converters["DOMString"](V, opts);
+  };
+
+  const algorithmDictionary = [
+    {
+      key: "name",
+      converter: webidl.converters["DOMString"],
+    },
+  ];
+
+  webidl.converters["Algorithm"] = webidl.createDictionaryConverter(
+    "Algorithm",
+    algorithmDictionary,
+  );
+})(this);