🐛 BUG: with a custom route defined, `wrangler dev` tries to request data from the wrong host when starting up

What version of Wrangler are you using?

2.0.3

What operating system are you using?

Mac

Describe the Bug

1. I have a route defined like so:

routes = [{ pattern = "*foo.bar.com/*", zone_name = "bar.com" }]

1. I start up wrangler dev
2. Wrangler tries to request bar.com/cdn-cgi/workers/preview, not foo.bar.com
3. Wrangler dies with ✘ [ERROR] Error on remote worker: SyntaxError: Unexpected token < in JSON at position 0 as it blindly tries to parse the incoming HTML from the wrong host as JSON.

Notes:

• wrangler dev works if I remove the route
• wrangler dev --local works
• foo.bar.com is routed to 192.0.2.1 in the DNS settings, and proxied through CF
• bar.com is routed to another public IP, and not proxied

[threepointone]

A workaround for now is to add this to your wrangler.toml:

[dev]
host = "foo.bar.com"

[threepointone]

Closing this issue, we released 2.0.16 that includes the probable fix, but happy to reopen if this issue persists.