update fleetd-chrome to set expected HTTP headers (#31768)

# Checklist for submitter

If some of the following don't apply, delete the relevant line.

- [X] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files)
for more information.


## Testing

- [ ] Added/updated automated tests
- [ ] Where appropriate, [automated tests simulate multiple hosts and
test for host
isolation](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/reference/patterns-backend.md#unit-testing)
(updates to one hosts's records do not affect another)

- [X] QA'd all new/changed functionality manually

## fleetd/orbit/Fleet Desktop

- [X] Verified compatibility with the latest released version of Fleet
(see [Must
rule](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/workflows/fleetd-development-and-release-strategy.md))

ee/fleetd-chrome/CHANGELOG.md

@@ -1,3 +1,7 @@
+## fleetd-chrome 1.3.2 (August 8, 2025)
+
+* Fixed a bug which caused fleetd-chrome to fail enrollment.
+
 ## fleetd-chrome 1.3.1 (May 20, 2024)
 
 * Fixed bug where fleetd-chrome sent multiple read requests to Fleet server at the same time.

ee/fleetd-chrome/src/background.ts

@@ -28,6 +28,10 @@ const request = async ({ path, body = {} }: requestArgs): Promise<any> => {
 
   const options = {
     method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      "Accept": "application/json",
+    },
     body: JSON.stringify(body),
   };
   console.debug("Request:", target, options);