Reactor gives cryptic error on malformed Elm application

MartinSStewart commented 6 years ago

Steps to reproduce:

Download program.zip. Alternatively, run elm init and add a src/Main.elm file containing
```
module Main exposing (..)
```

a = 5

2. Run `elm reactor` and open src/Main.elm
3. Note that elm reactor displays a blank page for a while before showing the text

A web handler threw an exception. Details: thread killed



Expected behavior: 
Since elm.json states this is an application, this program should result in a compile error.

Note that I've only tested this on Windows with Chrome.

bryce13950 commented 5 years ago

I'm getting the same issue on macOS with both Firefox and Safari

3nt3 commented 5 years ago

I'm getting the same issue on macOS with Chrome, Firefox and Safari

elm / error-message-catalog

Reactor gives cryptic error on malformed Elm application #267