Which Cloudflare product(s) does this pertain to?

Wrangler core

What version(s) of the tool(s) are you using?

3.48.0

What version of Node are you using?

21.7.2

What operating system and version are you using?

macOS Sonoma 14.4.1

Describe the Bug

Observed behavior

When developing a Worker with a scheduled handler, invoking the handler via http://localhost:8787/cdn-cgi/mf/scheduled throws the following error:

✘ [ERROR] Received a ScheduledEvent but we lack a handler for ScheduledEvents (a.k.a. Cron Triggers). Did you remember to export a scheduled() function?

Expected behavior

scheduled handler should be detected and executed.

Steps to reproduce

Please provide the following:

• Worker Code

export default {
	scheduled() {
		console.log("Hey!");
	}
}

• wrangler.json:

{
	"name": "cron-test",
	"main": "index.js",
	"compatibility_date": "2024-04-07",
	"triggers": {
		"crons": ["0 0 * * * * *"]
	}
}

• Command to start:

wrangler dev -j

• curl command:

$ curl http://localhost:8787/cdn-cgi/mf/scheduled
exception%

Please provide any relevant error logs

$ wrangler dev -j

 ⛅️ wrangler 3.48.0
-------------------
⎔ Starting local server...
▲ [WARNING] Miniflare 3 does not support CRON triggers yet, ignoring...


[wrangler:inf] Ready on http://localhost:8787
✘ [ERROR] Received a ScheduledEvent but we lack a handler for ScheduledEvents (a.k.a. Cron Triggers). Did you remember to export a scheduled() function?