fix: improve binary data detection in HTTP transport (#468)

package.json

@@ -107,6 +107,7 @@
   "homepage": "https://github.com/cloudevents/sdk-javascript#readme",
   "dependencies": {
     "ajv": "~6.12.3",
+    "util": "^0.12.4",
     "uuid": "~8.3.0"
   },
   "devDependencies": {

src/message/http/index.ts

@@ -3,6 +3,8 @@
  SPDX-License-Identifier: Apache-2.0
 */
 
+import { types } from "util";
+
 import { CloudEvent, CloudEventV1, CONSTANTS, Mode, Version } from "../..";
 import { Message, Headers, Binding } from "..";
 
@@ -29,7 +31,7 @@ function binary<T>(event: CloudEventV1<T>): Message {
   const contentType: Headers = { [CONSTANTS.HEADER_CONTENT_TYPE]: CONSTANTS.DEFAULT_CONTENT_TYPE };
   const headers: Headers = { ...contentType, ...headersFor(event) };
   let body = event.data;
-  if (typeof event.data === "object" && !(event.data instanceof Uint32Array)) {
+  if (typeof event.data === "object" && !types.isTypedArray(event.data)) {
     // we'll stringify objects, but not binary data
     body = (JSON.stringify(event.data) as unknown) as T;
   }

webpack.config.js

@@ -4,6 +4,11 @@ module.exports = {
   entry: {
     "cloudevents": "./browser/index.js"
   },
+  resolve: {
+    fallback: {
+      util: require.resolve("util/")
+    },
+  },
   output: {
     path: path.resolve(__dirname, "bundles"),
     filename: "[name].js",