Encoding Issues in JavaScript Files Using Rails Asset Pipeline

Encoding issues in javascript files using rails asset pipeline

When loading a file, Ruby tries to "guess" its encoding. If no UTF-8 or any other non-ASCII characters are found, it uses US-ASCII as encoding for the file and throws an error if it suddenly encounters a non-ASCII character, which e.g. is loaded at run-time.

The best solution for this problem is to force Ruby to use a certain encoding by adding
# encoding: utf-8 as the first line of a .rb file or <%# encoding: utf-8 %> if it's a .erb file.

Encoding error in JavaScript asset in Rails

try renaming it to js.erb and placing <%# encoding: utf-8 %> at the top

found a hint here: Encoding issues in javascript files using rails asset pipeline

Asset pipeline encoding problems (UTF-8 vs. ASCII-8BIT) with external gem

Is the error from a WEBrick server or something else? Does rake assets:precompile work? (don't forget to clear the assets after)

If the latter fails, double check the value of your $LANG environment variables is UTF-8 (with env). If the rake task works but the app is failing then it could be the server env vars.

Rails 3.2.11 asset pipeline: accented characters in javascript get converted to question marks in production

OK, so I finally got it working by replacing Rhino with Node.js (I'm required to use jRuby so therubyracer was apparently not a good option either).

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UPDATE: It's been quite a while and I had pretty much forgotten about this post, but now I have come across it again I feel there's something I should mention: Although my original solution of using Node.js worked, it turned out to be more of an inadverted workaround than anything else.

As I found out some time later, the source of the problem was that, due to my lack of experience with Linux, I was pretty sure that the locale was set up properly when it wasn't at all. Once I configured my locale correctly, it fixed this and quite a few other locale-related problems I was experiencing.

Rails Asset Pipeline JS Compression Inserting Illegal Characters

It seems as though you're using \b in some of your JavaScript regex, which I believe isn't supported. Try replacing \b with \u0008, E.x.

string.replace(/\u0008/g, '\\b')

Rails: Internationalization of Javascript Strings?

Why not something simple like:

<script type="text/javascript">
  window.I18n = <%= I18n.backend.send(:translations).to_json.html_safe %>
</script>

Then in JS you can do things like:

I18n["en-US"]["alpha"]["bravo"];

I've wrapped mine in an application helper.

def current_translations
  @translations ||= I18n.backend.send(:translations)
  @translations[I18n.locale].with_indifferent_access
end

Then my call in my application.html.erb looks like this:

<script type="text/javascript">
  window.I18n = <%= current_translations.to_json.html_safe %>
</script>

This allows you to avoid having to know the current locale in JavaScript.

I18n["alpha"]["bravo"];

Or

I18n.alpha.bravo;

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