Non-ASCII characters in code prevent hotswapping

[jastice]

Non-ASCII characters in code prevent hotswapping in the debugger.

• place any non-ASCII character anywhere in a source being watched by elm-reactor
• the code will not swap and throw an error in the JS console
• manually reloading does not show this problem

For example, save this as a utf-8 elm file, load it in the debugger and set it to hot-swap:

main = asText "note"

Now, change a character to an umlaut:

main = asText "nöte"

The debugger will not reload, and the javascript console throws an error:

Uncaught SyntaxError: Unexpected number

Remove the umlaut:

main = asText "nute"

The code will reload fine.

[avh4]

I'm wondering if changing this line https://github.com/elm-lang/elm-reactor/blob/621d51dc3bd59a4225ec4358b8b6cd04cc24dc4e/server/Socket.hs#L27 from sendTextData to sendBinaryData might help with this problem. (I haven't had a chance to get elm-recator compiling to try this out yet.)

[jastice]

Verified that issue persists in Elm Platform 0.14.1

[vilterp]

Closing as duplicate of #68, which has a more recent code example